X-3y=-31

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Solution for X-3y=-31 equation: 



X-3X=-31

We move all terms to the left:

X-3X-(-31)=0

We add all the numbers together, and all the variables

-2X+31=0

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

-2X=-31

X=-31/-2

X=15+1/2

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