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x+x+50.2=180
We move all terms to the left:
x+x+50.2-(180)=0
We add all the numbers together, and all the variables
2x-129.8=0
We move all terms containing x to the left, all other terms to the right
2x=129.8
x=129.8/2
x=64+1/1.1111111111111
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