x+x+20=150

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Solution for x+x+20=150 equation: 



x+x+20=150

We move all terms to the left:

x+x+20-(150)=0

We add all the numbers together, and all the variables

2x-130=0

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

2x=130

x=130/2

x=65

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