10+8x=31-x

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Solution for 10+8x=31-x equation: 



10+8x=31-x

We move all terms to the left:

10+8x-(31-x)=0

We add all the numbers together, and all the variables

8x-(-1x+31)+10=0

We get rid of parentheses

8x+1x-31+10=0

We add all the numbers together, and all the variables

9x-21=0

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

9x=21

x=21/9

x=2+1/3

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