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