5u+39=7(u+3)

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Solution for 5u+39=7(u+3) equation: 



5u+39=7(u+3)

We move all terms to the left:

5u+39-(7(u+3))=0



We calculate terms in parentheses: -(7(u+3)), so:

7(u+3)

We multiply parentheses

7u+21

Back to the equation:

-(7u+21)



We get rid of parentheses

5u-7u-21+39=0

We add all the numbers together, and all the variables

-2u+18=0

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

-2u=-18

u=-18/-2

u=+9

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