39=2(u+6)+7u

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Solution for 39=2(u+6)+7u equation: 



39=2(u+6)+7u

We move all terms to the left:

39-(2(u+6)+7u)=0



We calculate terms in parentheses: -(2(u+6)+7u), so:

2(u+6)+7u

We add all the numbers together, and all the variables

7u+2(u+6)

We multiply parentheses

7u+2u+12

We add all the numbers together, and all the variables

9u+12

Back to the equation:

-(9u+12)



We get rid of parentheses

-9u-12+39=0

We add all the numbers together, and all the variables

-9u+27=0

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

-9u=-27

u=-27/-9

u=+3

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