-3y-12=2(y+9)

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Solution for -3y-12=2(y+9) equation: 



-3y-12=2(y+9)

We move all terms to the left:

-3y-12-(2(y+9))=0



We calculate terms in parentheses: -(2(y+9)), so:

2(y+9)

We multiply parentheses

2y+18

Back to the equation:

-(2y+18)



We get rid of parentheses

-3y-2y-18-12=0

We add all the numbers together, and all the variables

-5y-30=0

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

-5y=30

y=30/-5

y=-6

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