7u+39=3(u+9)

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Solution for 7u+39=3(u+9) equation: 



7u+39=3(u+9)

We move all terms to the left:

7u+39-(3(u+9))=0



We calculate terms in parentheses: -(3(u+9)), so:

3(u+9)

We multiply parentheses

3u+27

Back to the equation:

-(3u+27)



We get rid of parentheses

7u-3u-27+39=0

We add all the numbers together, and all the variables

4u+12=0

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

4u=-12

u=-12/4

u=-3

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