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

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



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

We move all terms to the left:

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



We calculate terms in parentheses: -(6u+3(u+6)), so:

6u+3(u+6)

We multiply parentheses

6u+3u+18

We add all the numbers together, and all the variables

9u+18

Back to the equation:

-(9u+18)



We get rid of parentheses

-9u-18-9=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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