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1/90+1/n=1/60
We move all terms to the left:
1/90+1/n-(1/60)=0
Domain of the equation: n!=0We add all the numbers together, and all the variables
n∈R
1/n+1/90-(+1/60)=0
We get rid of parentheses
1/n+1/90-1/60=0
We calculate fractions
There is no solution for this equation
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