(2x-20)+(x-20)+40=180

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Solution for (2x-20)+(x-20)+40=180 equation: 



(2x-20)+(x-20)+40=180

We move all terms to the left:

(2x-20)+(x-20)+40-(180)=0

We add all the numbers together, and all the variables

(2x-20)+(x-20)-140=0

We get rid of parentheses

2x+x-20-20-140=0

We add all the numbers together, and all the variables

3x-180=0

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

3x=180

x=180/3

x=60

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