4=2(7-x)

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Solution for 4=2(7-x) equation: 



4=2(7-x)

We move all terms to the left:

4-(2(7-x))=0

We add all the numbers together, and all the variables

-(2(-1x+7))+4=0



We calculate terms in parentheses: -(2(-1x+7)), so:

2(-1x+7)

We multiply parentheses

-2x+14

Back to the equation:

-(-2x+14)



We get rid of parentheses

2x-14+4=0

We add all the numbers together, and all the variables

2x-10=0

We move all terms containing x to the left, all other terms to the right

2x=10

x=10/2

x=5

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