12-1x=2x

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Solution for 12-1x=2x equation: 



12-1x=2x

We move all terms to the left:

12-1x-(2x)=0

We add all the numbers together, and all the variables

-3x+12=0

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

-3x=-12

x=-12/-3

x=+4

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