-12-u=-2u

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



-12-u=-2u

We move all terms to the left:

-12-u-(-2u)=0

We add all the numbers together, and all the variables

-1u-(-2u)-12=0

We get rid of parentheses

-1u+2u-12=0

We add all the numbers together, and all the variables

u-12=0

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

u=12

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