6u+9=9(u+3)

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Solution for 6u+9=9(u+3) equation: 



6u+9=9(u+3)

We move all terms to the left:

6u+9-(9(u+3))=0



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

9(u+3)

We multiply parentheses

9u+27

Back to the equation:

-(9u+27)



We get rid of parentheses

6u-9u-27+9=0

We add all the numbers together, and all the variables

-3u-18=0

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

-3u=18

u=18/-3

u=-6

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