-x+31=x+15

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Solution for -x+31=x+15 equation: 



-x+31=x+15

We move all terms to the left:

-x+31-(x+15)=0

We add all the numbers together, and all the variables

-1x-(x+15)+31=0

We get rid of parentheses

-1x-x-15+31=0

We add all the numbers together, and all the variables

-2x+16=0

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

-2x=-16

x=-16/-2

x=+8

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