SOLUTION: why can't we substitute 3 for x in the rational expression 2/x-3?

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Question 325055: why can't we substitute 3 for x in the rational expression 2/x-3?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
you get 2/0, which freaks people out.
Not all people, but some of them.