(9-y)=2y

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Solution for (9-y)=2y equation: 



(9-y)=2y

We move all terms to the left:

(9-y)-(2y)=0

We add all the numbers together, and all the variables

(-1y+9)-2y=0

We add all the numbers together, and all the variables

-2y+(-1y+9)=0

We get rid of parentheses

-2y-1y+9=0

We add all the numbers together, and all the variables

-3y+9=0

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

-3y=-9

y=-9/-3

y=+3

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