-3y+9=-9-9y

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



-3y+9=-9-9y

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3y+9y+9+9=0

We add all the numbers together, and all the variables

6y+18=0

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

6y=-18

y=-18/6

y=-3

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