15y+9=3y-6

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



15y+9=3y-6

We move all terms to the left:

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

We get rid of parentheses

15y-3y+6+9=0

We add all the numbers together, and all the variables

12y+15=0

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

12y=-15

y=-15/12

y=-1+1/4

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