20=x+x+x

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Solution for 20=x+x+x equation: 



20=x+x+x

We move all terms to the left:

20-(x+x+x)=0

We add all the numbers together, and all the variables

-(+3x)+20=0

We get rid of parentheses

-3x+20=0

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

-3x=-20

x=-20/-3

x=6+2/3

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