3(y-1)=-6y-21

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Solution for 3(y-1)=-6y-21 equation: 



3(y-1)=-6y-21

We move all terms to the left:

3(y-1)-(-6y-21)=0

We multiply parentheses

3y-(-6y-21)-3=0

We get rid of parentheses

3y+6y+21-3=0

We add all the numbers together, and all the variables

9y+18=0

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

9y=-18

y=-18/9

y=-2

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