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45+n/6=31
We move all terms to the left:
45+n/6-(31)=0
We add all the numbers together, and all the variables
n/6+14=0
We multiply all the terms by the denominator
n+14*6=0
We add all the numbers together, and all the variables
n+84=0
We move all terms containing n to the left, all other terms to the right
n=-84
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