100-2x=x+20

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Solution for 100-2x=x+20 equation: 



100-2x=x+20

We move all terms to the left:

100-2x-(x+20)=0

We get rid of parentheses

-2x-x-20+100=0

We add all the numbers together, and all the variables

-3x+80=0

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

-3x=-80

x=-80/-3

x=26+2/3

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