7y+15=9(y+3)

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Solution for 7y+15=9(y+3) equation: 



7y+15=9(y+3)

We move all terms to the left:

7y+15-(9(y+3))=0



We calculate terms in parentheses: -(9(y+3)), so:

9(y+3)

We multiply parentheses

9y+27

Back to the equation:

-(9y+27)



We get rid of parentheses

7y-9y-27+15=0

We add all the numbers together, and all the variables

-2y-12=0

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

-2y=12

y=12/-2

y=-6

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