12y+3-9y=6y+15

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Solution for 12y+3-9y=6y+15 equation: 



12y+3-9y=6y+15

We move all terms to the left:

12y+3-9y-(6y+15)=0

We add all the numbers together, and all the variables

3y-(6y+15)+3=0

We get rid of parentheses

3y-6y-15+3=0

We add all the numbers together, and all the variables

-3y-12=0

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

-3y=12

y=12/-3

y=-4

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