-57=3(x-7)

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Solution for -57=3(x-7) equation: 



-57=3(x-7)

We move all terms to the left:

-57-(3(x-7))=0



We calculate terms in parentheses: -(3(x-7)), so:

3(x-7)

We multiply parentheses

3x-21

Back to the equation:

-(3x-21)



We get rid of parentheses

-3x+21-57=0

We add all the numbers together, and all the variables

-3x-36=0

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

-3x=36

x=36/-3

x=-12

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