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-3=3/r
We move all terms to the left:
-3-(3/r)=0
Domain of the equation: r)!=0We add all the numbers together, and all the variables
r!=0/1
r!=0
r∈R
-(+3/r)-3=0
We get rid of parentheses
-3/r-3=0
We multiply all the terms by the denominator
-3*r-3=0
We add all the numbers together, and all the variables
-3r-3=0
We move all terms containing r to the left, all other terms to the right
-3r=3
r=3/-3
r=-1
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