9y-21=-2y+6

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Solution for 9y-21=-2y+6 equation: 



9y-21=-2y+6

We move all terms to the left:

9y-21-(-2y+6)=0

We get rid of parentheses

9y+2y-6-21=0

We add all the numbers together, and all the variables

11y-27=0

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

11y=27

y=27/11

y=2+5/11

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