-18=3(3x+6)

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Solution for -18=3(3x+6) equation: 



-18=3(3x+6)

We move all terms to the left:

-18-(3(3x+6))=0



We calculate terms in parentheses: -(3(3x+6)), so:

3(3x+6)

We multiply parentheses

9x+18

Back to the equation:

-(9x+18)



We get rid of parentheses

-9x-18-18=0

We add all the numbers together, and all the variables

-9x-36=0

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

-9x=36

x=36/-9

x=-4

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