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20/15=40/n
We move all terms to the left:
20/15-(40/n)=0
Domain of the equation: n)!=0We add all the numbers together, and all the variables
n!=0/1
n!=0
n∈R
-(+40/n)+20/15=0
We get rid of parentheses
-40/n+20/15=0
We calculate fractions
There is no solution for this equation
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