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Shtirlitz [24]
2 years ago
13

What is = x help please ​

Mathematics
1 answer:
Nina [5.8K]2 years ago
8 0

Answer:

about x=38.1

Step-by-step explanation:

9x38.1=342.9

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For what value of the variable the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)?
iragen [17]

For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)

Step-by-step explanation:

We have to convert the given statement in mathematical or algebraic form to get the value of x for which the given condition is true.

So,

The problem can be written as:

4(5x-8) = 2(4-x)+4

Applying distributive property

20x-32 = 8-2x+4\\20x-32 = 12-2x\\

Adding 32 on both sides

20x-32+32 = 12-2x+32\\20x = 44-2x

Adding 2x on both sides

20x+2x = 44-2x+2x\\22x=44

Dividing both sides by 22

\frac{22x}{22} = \frac{44}{22}\\x = 2

Hence,

For x=2, the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)

Keywords: Linear equation, variables

Learn more about linear equation at:

  • brainly.com/question/10364988
  • brainly.com/question/10435816

#LearnwithBrainly

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Answer:

2x-1=31

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She notices that each equation contains the expression 2.x-1. Can she

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Substitute 3y for 2x-1 in the second equation to create one equation with

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Step-by-step explanation:

2x-1=31

5(21-1) + y = 32

She notices that each equation contains the expression 2.x-1. Can she

substitute 3y for 2x-1? Why or why not?

b

Substitute 3y for 2x-1 in the second equation to create one equation with

one variable. Then solve for x and y​

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