What value of x makes the equation -5x - (-7 - 4x) = -2(3x - 4) tru

Answers

Answer 1

Answer: 1/10 or 0.1

Step-by-step explanation:

    -(-7 - 4x) = -2(3x - 4)

      7 + 4x = -6x + 8

   * subtract 7 from both sides

            4x = -6x + 1

   * Add 6x to both sides

           10 x = 1

   * Divide both sides by 10

             x = 1/10  or 0.10

Answer 2
Well, you’re going to start by simplifying each side of the equation.

This step makes sure that you know to distribute the negative.

-5x + [-(-7-4x)] = -2(3x-4)

Continue to simplify. Start by distributing across the parentheses.

-5x+(7+4x)= -6x+8
-5x+4x+7= -6x+8
-x+7=-6x+8

Once you can’t simplify either side any more, you try and isolate the variable onto one side.

-x+7=-6x+8
+x. +x
________
7=-5x+8

Then isolate the constants into one side.

7=-5x+8
-8. -8
______
-1=-5x

Then make sure you have the variable being multiplied only once.

-1= -5x
—. —
-5. -5

0.2=x

And then move your variable to the left.

x=0.2

The value of x that makes the equation true is 0.2


I hope that helps!!








Related Questions

tell whether the following sequence is geometric or not. If geometric find r

hi can someone please answer my question i really need the complete step-by-step solution. thank you. ​

Answers

Answer:

not geometric because of the 4 at the beginning

Answer:

No

Step-by-step explanation:

We can observe the difference of terms is constant:

d = 1/3

The sequence is arithmetic, not geometric.

Help solve ONLY 8 AND 9 plz
plz answer this question

Answers

Answer:

x=26.8

Step-by-step explanation:

Hardest question in the world

Answers

Answer:

ytuty

Step-by-step explanation:

tyjtyjtyjtyjt

Answer:

17) postdate,  postcard, postage, postmark...

18) banalities

Step-by-step explanation:

I can solve the first word: Post

**From Merriam-Webster Dictionary:

banality (noun) - (plural) banalities

If Jose’s house is at -6,8 Tyrell’s house is at 6,8 the football field is at 6,-5 and Jose went to Tyrell’s house then to the football field how far did Jose travel to football practice

Answers

Answer:

25 = units Jose travelled

Jh to Th = x moves 12 across  

and y moves 0 is constant (up/down or constant)

Th to FF = x moves 0 stays constant and y moves 13 left

12 + 13 = 25

The purpose of this exercise is concerning parabolas = curve equations

x has two points x = -6 and x = 6

y has two points y = -5 and y = 8

however we cant plot this as ANSWER without using all the coordinates

y has one answer unit at 13 and not shown in an equation if it was the y intercept or curve mid point it would be a straight line and not a curve at 13 we can therefore set y to zero 0 as mid point curve when drawing the curve.

Then to find the each unit change we could prove with straight line upon the parabola by first using the straight line equation formula y-y1 = m(x+x1)

Straight line equation

Plug in Jose's coordinates given in the question.

Therefore y - - 6 = 6 (x + 8 ) = y+6 = 6x + 46  multiply out

= y+6 = 6x + 46 -6 cancel out with -6

= y = 6x+40

the answer therefore becomes  y=6x+40

Plug in the same for Tyrell coordinates given in the question.

y - 6 = -6 (x + 8 ) = y-6 = -6x + 46  multiply out

= y-6 = -6x - 46 + 6 cancel out with +6

= y = -6x+52

and is a decrease of 6 i various ways.  

Plug in for Football field coordinates given in the question.

y-6 = -6(x -5)

= y -6 = -6x +30

= y = -6x + 30+6

= y = -6x + 36

Shows constant 6 and -6 for m the slope and 46-36 = 10 decrease each side from 0 being the curve mid point on x line. down into the mid curve |

= 10+10 to represent each side = 20 then +5 = 25

As the shift in the curve makes negative positive and positive negative.

= 25 units

thank you!! Please show your work!​

Answers

Answer:

C: 1 1/5 miles per hour

Step-by-step explanation:

if you travel 3/5 miles in 1/2 of an hour then you multiply 1/2 and 3/5 by 2 to get how much you traveled in an hour which you get 1 1/5

Translate the sentence into an equation.

Two more than the quotient of a number and 4 equals 8.

use the variable c for the unknown number.

Answers

Step-by-step explanation:

2 + c/4 = 8

2 more than the quotient of equals 8

a number and 4

Please help with this math problem ASAP! I will give brainliest!

Answers

x = 112°y = 68°z = 68°

Step-by-step explanation:

x = 112°

y = z = 180° - 112° = 68°

Multiply.

[−427⋅(−18)]⋅(−389)⋅(−1)

What is the product?

Answers

Answer:

300/1 or 300

Step-by-step explanation:

I took the quiz

The product of the given numbers is 29,89,854.

The given expression is [(−427⋅(−18))⋅((−389)⋅(−1))].

What is product of integers?

Integers are the set of whole numbers and their opposites. When you multiply integers, the numbers that you are multiplying are called factors. Your answer after multiplying is called a product.

Product of negative and negative integers is positive.

Now,

(−427⋅(−18)) = 7686

((−389)⋅(−1)) = 389

7686 × 389 = 29,89,854

Therefore, the product of the given numbers is 29,89,854.

To learn more about the product of integers visit:

brainly.com/question/16941498.

#SPJ5

round 523 to the nearest ten

Answers

Answer:

523 to the nearest ten is 520

Pls help, and fast!!! i clicked a on accident

Answers

Answer:

i think it's A

Step-by-step explanation:

[tex]3\frac{1}{2} * \frac{1}{6}\\ \frac{7}{12}[/tex]

For my Homework tomorrow

Answers

A jumping dolphin good luck

100 Points and I WILL mark brainliest for first correct answer.
Someone do this again bc I'm confused!

Use the mapping (x+3, y-5), for the transformation of triangle ABC with vertices A (-2, -4), B (0, 0), and C (1, -3), find the coordinates of the new triangle A’B’C’. You must show all your work.

Answers

Answer:

A(1,-9), B(3,-5),C(4,-8)

Step-by-step explanation:

Help please! I need this done soon

Answers

Answer:

y = 3

Step-by-step explanation:

It has to be parallel to the x axis

the coordinates to the point is (6,3)

so to be parallel to x-axis y must always be 3 in this question

so y = 3 is the answer

Have a nice day! :-)

Determine the place value of the digit 3 in the whole number. 30,500,421

Answers

Answer:

30,000,000 or Thirty million -------> Ten millions place

Step-by-step explanation:

Hope this helps!

Can I get help on 1,2 and 5?

Answers

Answer:

Question 1: [tex]x=4[/tex]

Question 2: [tex]x= \pm7[/tex]

Question 5: The dimensions of one face of the container are 6 by 6 inches.

Step-by-step explanation:

Hi there!

Question 1

[tex]x^3=64[/tex]

Rewrite 64 as a power of 3:

[tex]x^3=4^3[/tex]

(We could find that 4³ = 64 through trial and error)

This above equation makes it true that x=4. If aⁿ = bⁿ, then a=b:

[tex]x=4[/tex]

Question 2

[tex]x^2=49[/tex]

Rewrite 49 as a power of 2:

[tex]x^2=7^2[/tex]

Again, we could have found this through trial and error, or by looking at our multiplication tables.

[tex]x=7[/tex]

However, remember that positive and negative numbers will all square to be a positive number. So, therefore, x can be -7 OR 7 (since both, when squared, equal 49):

[tex]x= \pm7[/tex]

Question 5

Let x be equal to the length of one edge of the cube.

Volume of a cube formula: [tex]V=x^3[/tex]

Plug in the given information, when V is the volume:

[tex]216=x^3[/tex]

Rewrite 216 as a power of 3:

[tex]6^3=x^3[/tex]

^ We could have found this through trial and error.

[tex]x=6[/tex]

Therefore, the dimensions of one face of the container are 6 by 6 inches.

I hope this helps!

please help me
please I will make you brainliest​

Answers

[tex]\\ \sf\longmapsto a+\dfrac{1}{a}=\sqrt{3}[/tex]

[tex]\\ \sf\longmapsto \left(a+\dfrac{1}{a}\right)^3=\sqrt{3}^3[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}+\dfrac{3a^2}{a}+\dfrac{3a}{a^2}=3\sqrt{3}[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}+3a+\dfrac{3}{a}=3\sqrt{3}[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3\sqrt{3}-3a-\dfrac{3}{a}[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3\left(\sqrt{3}-a-\dfrac{1}{a}\right)[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=3(0)[/tex]

[tex]\\ \sf\longmapsto a^3+\dfrac{1}{a^3}=0[/tex]

Proved

Answer:

Tn=a+(n−1)d, where a= First term, d= Difference between terms ... (2)

Equating (1) and (2)

6n+5=a+(n−1)d

6n+5=a+nd−d ..... (3)

Equating n terms:6n=nd

d=6 ...... (4)

Substituting (4) in (3)

6n+5=a+6n−6

5=a−6

a=11 ..... (5)

Now

Sn=2n(2a+(n−1)d)

Sn=2n(a+Tn) ....... (6)

Substituting (1) and (5) in (6)

Sn=2n(11+6n+5) 

Sn=2n(16+6n) 

Sn=n(8+3n) 

Tn=a+(n−1)d, where a= First term, d= Difference between terms ... (2)

Equating (1) and (2)

6n+5=a+(n−1)d

6n+5=a+nd−d ..... (3)

Equating n terms:6n=nd

d=6 ...... (4)

Substituting (4) in (3)

6n+5=a+6n−6

5=a−6

a=11 ..... (5)

Now

Sn=2n(2a+(n−1)d)

Sn=2n(a+Tn) ....... (6)

Substituting (1) and (5) in (6)

Sn=2n(11+6n+5) 

Sn=2n(16+6n) 

Sn=n(8+3n) 

Tn=a+(n−1)d, where a= First term, d= Difference between terms ... (2)

Equating (1) and (2)

6n+5=a+(n−1)d

6n+5=a+nd−d ..... (3)

Equating n terms:6n=nd

d=6 ...... (4)

Substituting (4) in (3)

6n+5=a+6n−6

5=a−6

a=11 ..... (5)

Now

Sn=2n(2a+(n−1)d)

Sn=2n(a+Tn) ....... (6)

Substituting (1) and (5) in (6)

Sn=2n(11+6n+5) 

Sn=2n(16+6n) 

Sn=n(8+3n) 

please help i need this done soon!!

Answers

Answer:

f(2) = -2

Step-by-step explanation:

plug in 2 to wherever x is in this statement:

f(2) = -2(2^2) - 2(2) + 10

f(2) = -2(4) - 4 + 10

f(2) = -8 - 4 + 10

f(2) = -2

f(2)= -2x^2 -2x +10
-2(4) -2(2) +10
-8 -4 +10
=-2

expand and simplify
3-2(k-2)-7(2k-3)

Answers

Answer:

- 16k + 28

Step-by-step explanation:

3 - 2(k - 2) - 7(2k - 3) ← distribute parenthesis

= 3 - 2k + 4 - 14k + 21 ← collect like terms

= - 16k + 28

Answer:28−16k

Step-by-step explanation:

3−2(k−2)−7(2k−3)

Use the distributive property to multiply −2 by k−2.

3−2k+4−7(2k−3)

Add 3 and 4 to get 7.

7−2k−7(2k−3)

Use the distributive property to multiply −7 by 2k−3.

7−2k−14k+21

Combine −2k and −14k to get −16k.

7−16k+21

Add 7 and 21 to get 28.

28−16k

This is due in 20 minutes, help, please.
Sergio spent $65 at the gas station. He paid $3 per gallon for gas and $7 on candy and soft drinks. How many gallons of gas did Sergio buy?

Write a algebraic equation for the word problem above.

Question 1 options:

3 + 7 + g = 65


65 + g = 7


7g + 3 = 65


3g + 7 = 65 (What I chose)

Question 2

Write an algebraic equation for the word problem below.

How old am I if 226 reduced by three times my age is 133?

Question 2 options:

3a - 226 = 133


226 - 3a = 133 (My answer)


133 - 3a = 226


3a - 226 = 133

Question 3

rite an algebraic expression for the word problem below.

The sum of three consecutive numbers is 72. What are the three numbers?

Question 3 options:

3n = 72


1 + 2 + 3 = 72


a + b + c = 72


n + (n + 1) + (n + 2) = 72 (My answer)

Question 4

Write an equation for the word problem below.

It costs $5 plus $2 per mile to ride in a taxi. Hannah took a taxi from her house to school this morning. She paid the taxi driver $25 when she got to the school. How many miles is it from Hannah's house to her school?

Question 4 options:

2m + 5 = 25


5m - 2 = 25


25 + 2m = 5


5m + 2m = 25 (My answer)

Question 5 (Unsure if I'm correct)

rder the steps for writing an algebraic equation from real life word problems.

Question 5 options:

2
Identify all the important information

3
Define the variable

4
Write an equation using the important information and the variable

1
Read through the entire problem

Answers

Answer:

1) You were right

2) Also correct

3) Again, correct

4) Wrong, the correct answer is 2m + 5 = 25

5) Correct

Step-by-step explanation:

1) Sergio spent a total of 65 dollars at the gas station. He spent 3 dollars per gallon and 7 on snacks.The equation will be:

3g + 7 = 65

2) 226 reduced by ( - ) 3 times your age ( 3a ) is ( = ) 133?

226 - 3a = 133

3) The sum of three consecutive numbers is 72.

n + ( n + 1 ) + ( n + 2 ) = 73

4) It cost 5 plus 2 per mile.The total spent was 25

2m + 5 = 25

5)

1. Read the entire problem.

2. Identify all the important info.

3. Define the variable

4. Write an equation using the important information and the variable

Mrs. Smith drives 4 hours at an average speed of 100 km/h. How far did she travel?

Answers

Answer:

400 km

Step-by-step explanation:

distance = speed * time

d = 100km/h * 4h

d = 400km

PLEASE HELP! I’m almost finished with this assignment if someone could answer these questions correctly I’ll give you Brainliest for saving me haha!
c. When a rational and an irrational number are added, is the sum rational or irrational?
Explain.
Type your response here:
d. When a nonzero rational and an irrational number are multiplied, is the product rational or
irrational? Explain.
Type your response here:
e. Which system of numbers is most similar to the system of polynomials?
Type your response here:
f. For each of the operations—addition, subtraction, multiplication, and division—determine
whether the set of polynomials of order 0 or 1 is closed or not closed. Consider any two
polynomials of degree 0 or 1.
Type your response here:

Answers

Answer:
C. The sum of any rational number and any irrational number will always be an irrational number.

Explanation: Each time they assume the sum is rational; however, upon rearranging the terms if their equation, they get a contradiction (that an irrational number is equal to a rational number). Since the assumption that the sum of a rational and irrational number is rational leads to a contradiction, the sum must be irrational.

Answer:
D. Any nonzero rational number times an irrational number is irrational.

Explanation: Assume r is nonzero and rational, and x is irrational. If rx = q, and q is rational, then x = q/r, which is rational. This is a contradiction.

Answer:
E. The system of polynomials is almost the same with the system of whole numbers.

Explanation: We count with and use a base 10 (decimal) system. Polynomials such as the function above are a “base x” system.

Answer:
F. Addition, subtraction, and multiplication would all be closed because every answer would be a polynomial. Division is not closed because when we divide numbers, sometimes they don’t divide evenly, leaving us with a remainder, which we can write as a fraction.

Explanation: (in answer)

I hope this at least semi helps!

Please I need help I am so lost

Answers

Answer:

[tex] \sqrt{ \frac{25}{64} } \\ \\ \frac{ \sqrt{25} }{ \sqrt{64} } \\ \\ 25 \: equal \: to \: 5 {}^{2} \\ and \: 64 \: equl \: to \: 8 {}^{2} \\ \frac{ \sqrt{5 {}^{2} } }{ \sqrt{8 {}^{2} } } \\ = \frac{5}{8} [/tex]

so its + or - 5/8

Have a great day

30 POINTS ANSWER ASAP

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.

Change the equation to slope-intercept form. Identify the slope and y-intercept of the equation. Be sure to show all your work.
Describe how you would graph this line using the slope-intercept method. Be sure to write using complete sentences.
Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences.
Graph the function. On the graph, make sure to label the intercepts. You may graph your equation by hand on a piece of paper and scan your work or you may use graphing technology.
Suppose Sal's total profit on lunch specials for the next month is $1,593. The profit amounts are the same: $2 for each sandwich and $3 for each wrap. In a paragraph of at least three complete sentences, explain how the graphs of the functions for the two months are similar and how they are different.

Answers

2x + 3y = 1470

3y = -2x + 1470

y = -2/3x + 490 is the equation in slope intercept form.  

slope = -2/3

y intercept = 490

allso, can u mark brainlist

WILL BRAINLIST !!!!!!!!

Answers

Step-by-step explanation:

1) 432000000

2) 1050000

3) 82310000000

4) 0.000231

5) 0.00007.

hope this helps you.

0.8% of 150 is what numbers and how do you write the equation with a variable in it.

Answers

Answer:

1.2

Step-by-step explanation:

1. First, we have to write an equation with a variable! Given 0.8%, we know that it's equal to (0.8/100), and "of" means to multiply. Therefore, the equation will looks like this: [tex]\frac{0.8}{100} * 150 = x[/tex]

2. Now, let's solve for x!

[tex]\frac{0.8}{100} * 150 = (0.008)(150)[/tex] [tex](0.008)(150) = \frac{6}{5}[/tex] [tex]\frac{6}{5} = 1\frac{1}{5}[/tex] [tex]1\frac{1}{5} = 1.2[/tex] [tex]1.2[/tex]

Therefore, 0.8% of 150 is 1.2!

Help I’ll mark as brainliest pls!!!!!

Answers

Answer:

B: Distributive property

Step-by-step explanation:

It is distributive because Robert distributed 3 to x and 2 to make the equation 3x+6=21.

distributive property

I need help pls and thx

Answers

Answer: 21√10

Step-by-step explanation:

Answer:

Answer: 21√10

Or Decimal: 66.41

What is seven divided by 2?

Answers

You can actually figure this out using long division ! I’d suggest learning it for future reference, but the answer is 3.5.
7/2= 3.5 and to check your answer you can multiply 3.5 times 2 which equals 7 so that answer is correct

Weight of Male Dogs (Ib.)
The most appropriate measure of center for this
data is the median
4
5
COMPLETE
5
0
2.
8
00
Which statement about the data is true?
6
N
2
8
7
2
8
O The mean is greater than the median.
O The mean is equal to the median.
The mean is less than the median.
8
1
9
on
5
DONE
8|1 means 81

Answers

Answer:

65  

Step-by-step explanation:

45, 50, 52, 58, 62, 68, 72, 78, 81, 95  

62 + 68 = 130/2 = 65  

The median is 65

The median of the weight of the male dogs is M = 65 lb

What is Median?

The median is the value that's exactly in the middle of a data set when it is ordered. It's a measure of central tendency that separates the lowest 50% from the highest 50% of values. The steps for finding the median differ depending on whether you have an odd or an even number of data points

Arrange the data points from smallest to largest.

If the number of data points is odd, the median is the middle data point in the list.

If the number of data points is even, the median is the average of the two middle data points in the list.

Given data ,

Let the weights of the male dogs be represented as set A

where the value of A is

Set A = { 45, 50, 52, 58, 62, 68, 72, 78, 81, 95 }

On simplifying , we get

The number of terms = 10

So , the median M = ( 62 + 68 ) / 2

The median M = 130/2 = 65 lb

where the mean is C = 66.1 lb

Hence , the median is M = 65 lb

To learn more about median click :

https://brainly.com/question/28687994

#SPJ7

52 divided by 91, find the quotient then write the remainder as a decimal.

Answers

Answer:  

The answer to 52 divided by 91 calculated using Long Division is:

0

52 Remainder

Step-by-step explanation:

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