x+7=7x-20

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Solution for x+7=7x-20 equation: 



x+7=7x-20

We move all terms to the left:

x+7-(7x-20)=0

We get rid of parentheses

x-7x+20+7=0

We add all the numbers together, and all the variables

-6x+27=0

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

-6x=-27

x=-27/-6

x=4+1/2

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