3u-9=9(u+5)

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Solution for 3u-9=9(u+5) equation: 



3u-9=9(u+5)

We move all terms to the left:

3u-9-(9(u+5))=0



We calculate terms in parentheses: -(9(u+5)), so:

9(u+5)

We multiply parentheses

9u+45

Back to the equation:

-(9u+45)



We get rid of parentheses

3u-9u-45-9=0

We add all the numbers together, and all the variables

-6u-54=0

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

-6u=54

u=54/-6

u=-9

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