-23=2+y-9

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Solution for -23=2+y-9 equation: 



-23=2+y-9

We move all terms to the left:

-23-(2+y-9)=0

We add all the numbers together, and all the variables

-(y-7)-23=0

We get rid of parentheses

-y+7-23=0

We add all the numbers together, and all the variables

-1y-16=0

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

-y=16

y=16/-1

y=-16

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