3u+15=6(u-1)

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Solution for 3u+15=6(u-1) equation: 



3u+15=6(u-1)

We move all terms to the left:

3u+15-(6(u-1))=0



We calculate terms in parentheses: -(6(u-1)), so:

6(u-1)

We multiply parentheses

6u-6

Back to the equation:

-(6u-6)



We get rid of parentheses

3u-6u+6+15=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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