18=-2(3x+6)-12

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Solution for 18=-2(3x+6)-12 equation: 



18=-2(3x+6)-12

We move all terms to the left:

18-(-2(3x+6)-12)=0



We calculate terms in parentheses: -(-2(3x+6)-12), so:

-2(3x+6)-12

We multiply parentheses

-6x-12-12

We add all the numbers together, and all the variables

-6x-24

Back to the equation:

-(-6x-24)



We get rid of parentheses

6x+24+18=0

We add all the numbers together, and all the variables

6x+42=0

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

6x=-42

x=-42/6

x=-7

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