-12=2x-5x

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Solution for -12=2x-5x equation: 



-12=2x-5x

We move all terms to the left:

-12-(2x-5x)=0

We add all the numbers together, and all the variables

-(-3x)-12=0

We get rid of parentheses

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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