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 add all the numbers together, and all the variables

3y-(-3)=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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