(3y+12)=9

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



(3y+12)=9

We move all terms to the left:

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

We get rid of parentheses

3y+12-9=0

We add all the numbers together, and all the variables

3y+3=0

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

3y=-3

y=-3/3

y=-1

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