3y-9y=-66

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Solution for 3y-9y=-66 equation: 



3y-9y=-66

We move all terms to the left:

3y-9y-(-66)=0

We add all the numbers together, and all the variables

-6y+66=0

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

-6y=-66

y=-66/-6

y=+11

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