-9(y+7)=5y-21

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Solution for -9(y+7)=5y-21 equation: 



-9(y+7)=5y-21

We move all terms to the left:

-9(y+7)-(5y-21)=0

We multiply parentheses

-9y-(5y-21)-63=0

We get rid of parentheses

-9y-5y+21-63=0

We add all the numbers together, and all the variables

-14y-42=0

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

-14y=42

y=42/-14

y=-3

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