-3y+7=21

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Solution for -3y+7=21 equation: 



-3y+7=21

We move all terms to the left:

-3y+7-(21)=0

We add all the numbers together, and all the variables

-3y-14=0

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

-3y=14

y=14/-3

y=-4+2/3

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