-4=7x-12+2x

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



-4=7x-12+2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(9x-12)-4=0

We get rid of parentheses

-9x+12-4=0

We add all the numbers together, and all the variables

-9x+8=0

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

-9x=-8

x=-8/-9

x=8/9

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