SOLUTION: how do i solve 7r=5r ?

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Question 487139: how do i solve 7r=5r ?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

7r=5r...there is no solution; you do NOT have such a number r that makes 7r=5r true

7r=5r...here, you cancel r by dividing both sides by r
7cross%28r%29=5cross%28r%29...and you got 7=5 which is NOT true