-1y+20=31

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Solution for -1y+20=31 equation: 



-1y+20=31

We move all terms to the left:

-1y+20-(31)=0

We add all the numbers together, and all the variables

-1y-11=0

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

-y=11

y=11/-1

y=-11

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