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4/r+2=2/7
We move all terms to the left:
4/r+2-(2/7)=0
Domain of the equation: r!=0We add all the numbers together, and all the variables
r∈R
4/r+2-(+2/7)=0
We get rid of parentheses
4/r+2-2/7=0
We calculate fractions
There is no solution for this equation
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