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5/r=19
We move all terms to the left:
5/r-(19)=0
Domain of the equation: r!=0We multiply all the terms by the denominator
r∈R
-19*r+5=0
We add all the numbers together, and all the variables
-19r+5=0
We move all terms containing r to the left, all other terms to the right
-19r=-5
r=-5/-19
r=5/19
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