-y=-9y-15

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Solution for -y=-9y-15 equation: 



-y=-9y-15

We move all terms to the left:

-y-(-9y-15)=0

We add all the numbers together, and all the variables

-1y-(-9y-15)=0

We get rid of parentheses

-1y+9y+15=0

We add all the numbers together, and all the variables

8y+15=0

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

8y=-15

y=-15/8

y=-1+7/8

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