-12=3x-3+6x

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



-12=3x-3+6x

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(9x-3)-12=0

We get rid of parentheses

-9x+3-12=0

We add all the numbers together, and all the variables

-9x-9=0

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

-9x=9

x=9/-9

x=-1

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