-5y+2(y-3)=-21

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Solution for -5y+2(y-3)=-21 equation: 



-5y+2(y-3)=-21

We move all terms to the left:

-5y+2(y-3)-(-21)=0

We add all the numbers together, and all the variables

-5y+2(y-3)+21=0

We multiply parentheses

-5y+2y-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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