2x+10=-x+31

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Solution for 2x+10=-x+31 equation: 



2x+10=-x+31

We move all terms to the left:

2x+10-(-x+31)=0

We add all the numbers together, and all the variables

2x-(-1x+31)+10=0

We get rid of parentheses

2x+1x-31+10=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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