2y-9=9-y

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



2y-9=9-y

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2y+1y-9-9=0

We add all the numbers together, and all the variables

3y-18=0

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

3y=18

y=18/3

y=6

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