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1/3n=210
We move all terms to the left:
1/3n-(210)=0
Domain of the equation: 3n!=0We multiply all the terms by the denominator
n!=0/3
n!=0
n∈R
-210*3n+1=0
Wy multiply elements
-630n+1=0
We move all terms containing n to the left, all other terms to the right
-630n=-1
n=-1/-630
n=1/630
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