-57=3x(-7)

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



-57=3x(-7)

We move all terms to the left:

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



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

3x(-7)

We multiply parentheses

-21x

Back to the equation:

-(-21x)



We get rid of parentheses

21x-57=0

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

21x=57

x=57/21

x=2+5/7

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