2(x,+7)=4(x-7)

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



2(x.+7)=4(x-7)

We move all terms to the left:

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

We multiply parentheses

2x-(4(x-7))+14=0



We calculate terms in parentheses: -(4(x-7)), so:

4(x-7)

We multiply parentheses

4x-28

Back to the equation:

-(4x-28)



We get rid of parentheses

2x-4x+28+14=0

We add all the numbers together, and all the variables

-2x+42=0

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

-2x=-42

x=-42/-2

x=+21

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