-7+9y=21

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Solution for -7+9y=21 equation: 



-7+9y=21

We move all terms to the left:

-7+9y-(21)=0

We add all the numbers together, and all the variables

9y-28=0

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

9y=28

y=28/9

y=3+1/9

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