-12=2u+2(u+4)

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Solution for -12=2u+2(u+4) equation: 



-12=2u+2(u+4)

We move all terms to the left:

-12-(2u+2(u+4))=0



We calculate terms in parentheses: -(2u+2(u+4)), so:

2u+2(u+4)

We multiply parentheses

2u+2u+8

We add all the numbers together, and all the variables

4u+8

Back to the equation:

-(4u+8)



We get rid of parentheses

-4u-8-12=0

We add all the numbers together, and all the variables

-4u-20=0

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

-4u=20

u=20/-4

u=-5

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