2x+11=31-8x

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Solution for 2x+11=31-8x equation: 



2x+11=31-8x

We move all terms to the left:

2x+11-(31-8x)=0

We add all the numbers together, and all the variables

2x-(-8x+31)+11=0

We get rid of parentheses

2x+8x-31+11=0

We add all the numbers together, and all the variables

10x-20=0

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

10x=20

x=20/10

x=2

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