-3(7+x)=-57

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



-3(7+x)=-57

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-3(x+7)+57=0

We multiply 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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