8x+11+x=-31=2x

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



8x+11+x=-31=2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

9x+42=0

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

9x=-42

x=-42/9

x=-4+2/3

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