7y+15=3(3y-7)

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Solution for 7y+15=3(3y-7) equation: 



7y+15=3(3y-7)

We move all terms to the left:

7y+15-(3(3y-7))=0



We calculate terms in parentheses: -(3(3y-7)), so:

3(3y-7)

We multiply parentheses

9y-21

Back to the equation:

-(9y-21)



We get rid of parentheses

7y-9y+21+15=0

We add all the numbers together, and all the variables

-2y+36=0

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

-2y=-36

y=-36/-2

y=+18

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