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

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Solution for (x-20)+2x+x=180 equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x+(x-20)-180=0

We get rid of parentheses

3x+x-20-180=0

We add all the numbers together, and all the variables

4x-200=0

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

4x=200

x=200/4

x=50

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