Y=-9+9x

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Solution for Y=-9+9x equation: 



=-9+9Y

We move all terms to the left:

-(-9+9Y)=0

We add all the numbers together, and all the variables

-(9Y-9)=0

We get rid of parentheses

-9Y+9=0

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

-9Y=-9

Y=-9/-9

Y=1

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