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12=3/n
We move all terms to the left:
12-(3/n)=0
Domain of the equation: n)!=0We add all the numbers together, and all the variables
n!=0/1
n!=0
n∈R
-(+3/n)+12=0
We get rid of parentheses
-3/n+12=0
We multiply all the terms by the denominator
12*n-3=0
We add all the numbers together, and all the variables
12n-3=0
We move all terms containing n to the left, all other terms to the right
12n=3
n=3/12
n=1/4
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