9y+3y=6y+15

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



9y+3y=6y+15

We move all terms to the left:

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

We add all the numbers together, and all the variables

12y-(6y+15)=0

We get rid of parentheses

12y-6y-15=0

We add all the numbers together, and all the variables

6y-15=0

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

6y=15

y=15/6

y=2+1/2

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