(x+20)+(x-30)=180

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Solution for (x+20)+(x-30)=180 equation: 



(x+20)+(x-30)=180

We move all terms to the left:

(x+20)+(x-30)-(180)=0

We get rid of parentheses

x+x+20-30-180=0

We add all the numbers together, and all the variables

2x-190=0

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

2x=190

x=190/2

x=95

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