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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-(-2(x+18))=0



We calculate terms in parentheses: -(-2(x+18)), so:

-2(x+18)

We multiply parentheses

-2x-36

Back to the equation:

-(-2x-36)



We get rid of parentheses

4x+2x+36=0

We add all the numbers together, and all the variables

6x+36=0

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

6x=-36

x=-36/6

x=-6

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