31=19-2y

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Solution for 31=19-2y equation: 



31=19-2y

We move all terms to the left:

31-(19-2y)=0

We add all the numbers together, and all the variables

-(-2y+19)+31=0

We get rid of parentheses

2y-19+31=0

We add all the numbers together, and all the variables

2y+12=0

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

2y=-12

y=-12/2

y=-6

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