-3x+12+9x=8x-5x

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Solution for -3x+12+9x=8x-5x equation: 



-3x+12+9x=8x-5x

We move all terms to the left:

-3x+12+9x-(8x-5x)=0

We add all the numbers together, and all the variables

-3x+9x-(+3x)+12=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

6x-3x+12=0

We add all the numbers together, and all the variables

3x+12=0

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

3x=-12

x=-12/3

x=-4

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