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86=0.45n
We move all terms to the left:
86-(0.45n)=0
We add all the numbers together, and all the variables
-(+0.45n)+86=0
We get rid of parentheses
-0.45n+86=0
We move all terms containing n to the left, all other terms to the right
-0.45n=-86
n=-86/-0.45
n=191+0.049999999999997/0.45
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