-12=3(y-9)

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



-12=3(y-9)

We move all terms to the left:

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



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

3(y-9)

We multiply parentheses

3y-27

Back to the equation:

-(3y-27)



We get rid of parentheses

-3y+27-12=0

We add all the numbers together, and all the variables

-3y+15=0

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

-3y=-15

y=-15/-3

y=+5

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