6u+12=9(u-1)

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Solution for 6u+12=9(u-1) equation: 



6u+12=9(u-1)

We move all terms to the left:

6u+12-(9(u-1))=0



We calculate terms in parentheses: -(9(u-1)), so:

9(u-1)

We multiply parentheses

9u-9

Back to the equation:

-(9u-9)



We get rid of parentheses

6u-9u+9+12=0

We add all the numbers together, and all the variables

-3u+21=0

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

-3u=-21

u=-21/-3

u=+7

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