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February 1, 2015

February 1, 2015

Posted by **diana** on Saturday, July 16, 2011 at 3:36am.

- math -
**diana**, Saturday, July 16, 2011 at 4:12amhelp me..

- math -
**Reiny**, Saturday, July 16, 2011 at 8:08amlet the number be x

the reciprocal of the number is 1/x

twice the reciprocal is 2/x

2/x - x = 7/3

multiply each term by 3x

6 - 3x^2 = 7x

3x^2 + 7x - 6 = 0

(3x - 2)(x + 3) 0

x = 2/3 or x = -3

- math -
**diana**, Sunday, July 17, 2011 at 6:44pm@reiny.. thanks.. :)

- math -
**Regie**, Wednesday, August 31, 2011 at 6:32amThanks too...

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