(20+x)+x+x=180

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Solution for (20+x)+x+x=180 equation: 



(20+x)+x+x=180

We move all terms to the left:

(20+x)+x+x-(180)=0

We add all the numbers together, and all the variables

(x+20)+x+x-180=0

We add all the numbers together, and all the variables

2x+(x+20)-180=0

We get rid of parentheses

2x+x+20-180=0

We add all the numbers together, and all the variables

3x-160=0

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

3x=160

x=160/3

x=53+1/3

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