-30=3x+3(x-4)

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Solution for -30=3x+3(x-4) equation: 



-30=3x+3(x-4)

We move all terms to the left:

-30-(3x+3(x-4))=0



We calculate terms in parentheses: -(3x+3(x-4)), so:

3x+3(x-4)

We multiply parentheses

3x+3x-12

We add all the numbers together, and all the variables

6x-12

Back to the equation:

-(6x-12)



We get rid of parentheses

-6x+12-30=0

We add all the numbers together, and all the variables

-6x-18=0

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

-6x=18

x=18/-6

x=-3

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