-8y+3(y-3)=21

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Solution for -8y+3(y-3)=21 equation: 



-8y+3(y-3)=21

We move all terms to the left:

-8y+3(y-3)-(21)=0

We multiply parentheses

-8y+3y-9-21=0

We add all the numbers together, and all the variables

-5y-30=0

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

-5y=30

y=30/-5

y=-6

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