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5r/r+1=4-5/r+1
We move all terms to the left:
5r/r+1-(4-5/r+1)=0
Domain of the equation: r!=0
r∈R
Domain of the equation: r+1)!=0We add all the numbers together, and all the variables
r∈R
5r/r-(-5/r+5)+1=0
We get rid of parentheses
5r/r+5/r-5+1=0
We multiply all the terms by the denominator
5r-5*r+1*r+5=0
We add all the numbers together, and all the variables
r+5=0
We move all terms containing r to the left, all other terms to the right
r=-5
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