0=3y+21=y=

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Solution for 0=3y+21=y= equation: 



0=3y+21=y=

We move all terms to the left:

0-(3y+21)=0

We add all the numbers together, and all the variables

-(3y+21)=0

We get rid of parentheses

-3y-21=0

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

-3y=21

y=21/-3

y=-7

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