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75=30/n
We move all terms to the left:
75-(30/n)=0
Domain of the equation: n)!=0We add all the numbers together, and all the variables
n!=0/1
n!=0
n∈R
-(+30/n)+75=0
We get rid of parentheses
-30/n+75=0
We multiply all the terms by the denominator
75*n-30=0
We add all the numbers together, and all the variables
75n-30=0
We move all terms containing n to the left, all other terms to the right
75n=30
n=30/75
n=2/5
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