SOLUTION: how do you solve 6/r=2/(r-6)

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Question 385653: how do you solve 6/r=2/(r-6)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
cross multiply
6*(r-6)=2r
6r-36=2r
-36=-4r
r=9
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6/9=2/3
same thing