-1-y-3y=31

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Solution for -1-y-3y=31 equation: 



-1-y-3y=31

We move all terms to the left:

-1-y-3y-(31)=0

We add all the numbers together, and all the variables

-4y-32=0

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

-4y=32

y=32/-4

y=-8

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