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27=240/n-3
We move all terms to the left:
27-(240/n-3)=0
Domain of the equation: n-3)!=0We get rid of parentheses
n∈R
-240/n+3+27=0
We multiply all the terms by the denominator
3*n+27*n-240=0
We add all the numbers together, and all the variables
30n-240=0
We move all terms containing n to the left, all other terms to the right
30n=240
n=240/30
n=8
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