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8/2=x/20
We move all terms to the left:
8/2-(x/20)=0
We add all the numbers together, and all the variables
-(+x/20)+8/2=0
We add all the numbers together, and all the variables
-(+x/20)+4=0
We get rid of parentheses
-x/20+4=0
We multiply all the terms by the denominator
-x+4*20=0
We add all the numbers together, and all the variables
-1x+80=0
We move all terms containing x to the left, all other terms to the right
-x=-80
x=-80/-1
x=+80
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