9y+9=8y-9=

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Solution for 9y+9=8y-9= equation: 



9y+9=8y-9=

We move all terms to the left:

9y+9-(8y-9)=0

We get rid of parentheses

9y-8y+9+9=0

We add all the numbers together, and all the variables

y+18=0

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

y=-18

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