x+11=8x-20

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Solution for x+11=8x-20 equation: 



x+11=8x-20

We move all terms to the left:

x+11-(8x-20)=0

We get rid of parentheses

x-8x+20+11=0

We add all the numbers together, and all the variables

-7x+31=0

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

-7x=-31

x=-31/-7

x=4+3/7

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