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212x+72=20x+80
We move all terms to the left:
212x+72-(20x+80)=0
We get rid of parentheses
212x-20x-80+72=0
We add all the numbers together, and all the variables
192x-8=0
We move all terms containing x to the left, all other terms to the right
192x=8
x=8/192
x=1/24
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