x+21+2x-22+4x+20=180

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Solution for x+21+2x-22+4x+20=180 equation: 



x+21+2x-22+4x+20=180

We move all terms to the left:

x+21+2x-22+4x+20-(180)=0

We add all the numbers together, and all the variables

7x-161=0

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

7x=161

x=161/7

x=23

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