2y-4y=-31

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Solution for 2y-4y=-31 equation: 



2y-4y=-31

We move all terms to the left:

2y-4y-(-31)=0

We add all the numbers together, and all the variables

-2y+31=0

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

-2y=-31

y=-31/-2

y=15+1/2

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