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3.1n+2.1=6.7
We move all terms to the left:
3.1n+2.1-(6.7)=0
We add all the numbers together, and all the variables
3.1n-4.6=0
We move all terms containing n to the left, all other terms to the right
3.1n=4.6
n=4.6/3.1
n=1+1/2.06666666667
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