3y-9=+y

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Solution for 3y-9=+y equation: 



3y-9=+y

We move all terms to the left:

3y-9-(+y)=0

We get rid of parentheses

3y-y-9=0

We add all the numbers together, and all the variables

2y-9=0

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

2y=9

y=9/2

y=4+1/2

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