12=4u-(-4)

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Solution for 12=4u-(-4) equation: 



12=4u-(-4)

We move all terms to the left:

12-(4u-(-4))=0



We calculate terms in parentheses: -(4u-(-4)), so:

4u-(-4)

We add all the numbers together, and all the variables

4u+4

Back to the equation:

-(4u+4)



We get rid of parentheses

-4u-4+12=0

We add all the numbers together, and all the variables

-4u+8=0

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

-4u=-8

u=-8/-4

u=+2

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