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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