12-x-2x=-12

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Solution for 12-x-2x=-12 equation: 



12-x-2x=-12

We move all terms to the left:

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

We add all the numbers together, and all the variables

-3x+24=0

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

-3x=-24

x=-24/-3

x=+8

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