(y-7)-(y+2)=3y

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Solution for (y-7)-(y+2)=3y equation: 



(y-7)-(y+2)=3y

We move all terms to the left:

(y-7)-(y+2)-(3y)=0

We add all the numbers together, and all the variables

-3y+(y-7)-(y+2)=0

We get rid of parentheses

-3y+y-y-7-2=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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