12=6(u+7)+4u

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Solution for 12=6(u+7)+4u equation: 



12=6(u+7)+4u

We move all terms to the left:

12-(6(u+7)+4u)=0



We calculate terms in parentheses: -(6(u+7)+4u), so:

6(u+7)+4u

We add all the numbers together, and all the variables

4u+6(u+7)

We multiply parentheses

4u+6u+42

We add all the numbers together, and all the variables

10u+42

Back to the equation:

-(10u+42)



We get rid of parentheses

-10u-42+12=0

We add all the numbers together, and all the variables

-10u-30=0

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

-10u=30

u=30/-10

u=-3

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