-3y=-20+y

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Solution for -3y=-20+y equation: 



-3y=-20+y

We move all terms to the left:

-3y-(-20+y)=0

We add all the numbers together, and all the variables

-3y-(y-20)=0

We get rid of parentheses

-3y-y+20=0

We add all the numbers together, and all the variables

-4y+20=0

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

-4y=-20

y=-20/-4

y=+5

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