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4n+-8.1=8.3
We move all terms to the left:
4n+-8.1-(8.3)=0
We add all the numbers together, and all the variables
4n-16.4=0
We move all terms containing n to the left, all other terms to the right
4n=16.4
n=16.4/4
n=4+0.4/4
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