-18=9(1+3x)

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Solution for -18=9(1+3x) equation: 



-18=9(1+3x)

We move all terms to the left:

-18-(9(1+3x))=0

We add all the numbers together, and all the variables

-(9(3x+1))-18=0



We calculate terms in parentheses: -(9(3x+1)), so:

9(3x+1)

We multiply parentheses

27x+9

Back to the equation:

-(27x+9)



We get rid of parentheses

-27x-9-18=0

We add all the numbers together, and all the variables

-27x-27=0

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

-27x=27

x=27/-27

x=-1

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