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December 21, 2014

December 21, 2014

Posted by **Alex** on Tuesday, September 28, 2010 at 9:43am.

((9)/(7x)) + ((1)/(2y)) -1

I got an aswer of (16y)/(7x+2y+1)) but when I submit it shows me as wrong. Can anyone help, thanks

- Algebra -
**Reiny**, Tuesday, September 28, 2010 at 9:53am9/(7x) + 1/(2y) - 1

has a common denominator of 14xy

so ...

= (18y + 7x - 14xy)/(14xy)

(Did you really ADD the denominators???)

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