12=2u+6(u+6)

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Solution for 12=2u+6(u+6) equation: 



12=2u+6(u+6)

We move all terms to the left:

12-(2u+6(u+6))=0



We calculate terms in parentheses: -(2u+6(u+6)), so:

2u+6(u+6)

We multiply parentheses

2u+6u+36

We add all the numbers together, and all the variables

8u+36

Back to the equation:

-(8u+36)



We get rid of parentheses

-8u-36+12=0

We add all the numbers together, and all the variables

-8u-24=0

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

-8u=24

u=24/-8

u=-3

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