-30=3(x+7)

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Solution for -30=3(x+7) equation: 



-30=3(x+7)

We move all terms to the left:

-30-(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-21-30=0

We add all the numbers together, and all the variables

-3x-51=0

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

-3x=51

x=51/-3

x=-17

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