12+3x=-15+6x

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Solution for 12+3x=-15+6x equation: 



12+3x=-15+6x

We move all terms to the left:

12+3x-(-15+6x)=0

We add all the numbers together, and all the variables

3x-(6x-15)+12=0

We get rid of parentheses

3x-6x+15+12=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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