-2x+12+9x=7x-4x

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Solution for -2x+12+9x=7x-4x equation: 



-2x+12+9x=7x-4x

We move all terms to the left:

-2x+12+9x-(7x-4x)=0

We add all the numbers together, and all the variables

-2x+9x-(+3x)+12=0

We add all the numbers together, and all the variables

7x-(+3x)+12=0

We get rid of parentheses

7x-3x+12=0

We add all the numbers together, and all the variables

4x+12=0

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

4x=-12

x=-12/4

x=-3

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