12+x+4+3x=x-2

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Solution for 12+x+4+3x=x-2 equation: 



12+x+4+3x=x-2

We move all terms to the left:

12+x+4+3x-(x-2)=0

We add all the numbers together, and all the variables

4x-(x-2)+16=0

We get rid of parentheses

4x-x+2+16=0

We add all the numbers together, and all the variables

3x+18=0

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

3x=-18

x=-18/3

x=-6

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