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1/10+1/r=1/5
We move all terms to the left:
1/10+1/r-(1/5)=0
Domain of the equation: r!=0We add all the numbers together, and all the variables
r∈R
1/r+1/10-(+1/5)=0
We get rid of parentheses
1/r+1/10-1/5=0
We calculate fractions
There is no solution for this equation
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