18=-6(x+9)

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Solution for 18=-6(x+9) equation: 



18=-6(x+9)

We move all terms to the left:

18-(-6(x+9))=0



We calculate terms in parentheses: -(-6(x+9)), so:

-6(x+9)

We multiply parentheses

-6x-54

Back to the equation:

-(-6x-54)



We get rid of parentheses

6x+54+18=0

We add all the numbers together, and all the variables

6x+72=0

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

6x=-72

x=-72/6

x=-12

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