-9x-12=8+4x

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Solution for -9x-12=8+4x equation: 



-9x-12=8+4x

We move all terms to the left:

-9x-12-(8+4x)=0

We add all the numbers together, and all the variables

-9x-(4x+8)-12=0

We get rid of parentheses

-9x-4x-8-12=0

We add all the numbers together, and all the variables

-13x-20=0

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

-13x=20

x=20/-13

x=-1+7/13

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