-18=-2(-6x-9)

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Solution for -18=-2(-6x-9) equation: 



-18=-2(-6x-9)

We move all terms to the left:

-18-(-2(-6x-9))=0



We calculate terms in parentheses: -(-2(-6x-9)), so:

-2(-6x-9)

We multiply parentheses

12x+18

Back to the equation:

-(12x+18)



We get rid of parentheses

-12x-18-18=0

We add all the numbers together, and all the variables

-12x-36=0

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

-12x=36

x=36/-12

x=-3

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