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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

4x-2x+2+12=0

We add all the numbers together, and all the variables

2x+14=0

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

2x=-14

x=-14/2

x=-7

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