-5y+2(y+6)=21

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Solution for -5y+2(y+6)=21 equation: 



-5y+2(y+6)=21

We move all terms to the left:

-5y+2(y+6)-(21)=0

We multiply parentheses

-5y+2y+12-21=0

We add all the numbers together, and all the variables

-3y-9=0

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

-3y=9

y=9/-3

y=-3

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