-3(y-2)=21

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Solution for -3(y-2)=21 equation: 



-3(y-2)=21

We move all terms to the left:

-3(y-2)-(21)=0

We multiply parentheses

-3y+6-21=0

We add all the numbers together, and all the variables

-3y-15=0

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

-3y=15

y=15/-3

y=-5

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