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September 30, 2014

September 30, 2014

Posted by **Anonymous** on Thursday, March 25, 2010 at 12:51am.

- algebra -
**Joey**, Monday, April 5, 2010 at 6:33amAssume the number is x.

Square that number and then subtract one: x^2 - 1.

Divide by one less than your original number: (x^2 - 1)/(x-1) = x+1

Now subtract your original number: x+1-x = 1.

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