-12=2+2u

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Solution for -12=2+2u equation: 



-12=2+2u

We move all terms to the left:

-12-(2+2u)=0

We add all the numbers together, and all the variables

-(2u+2)-12=0

We get rid of parentheses

-2u-2-12=0

We add all the numbers together, and all the variables

-2u-14=0

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

-2u=14

u=14/-2

u=-7

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