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3x+20=20x-8
We move all terms to the left:
3x+20-(20x-8)=0
We get rid of parentheses
3x-20x+8+20=0
We add all the numbers together, and all the variables
-17x+28=0
We move all terms containing x to the left, all other terms to the right
-17x=-28
x=-28/-17
x=1+11/17
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