(2x+x)=20

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Solution for (2x+x)=20 equation: 



(2x+x)=20

We move all terms to the left:

(2x+x)-(20)=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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