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April 19, 2015

April 19, 2015

Posted by **Donna** on Wednesday, August 31, 2011 at 10:02pm.

- Math -
**Reiny**, Wednesday, August 31, 2011 at 11:12pmI will assume that P represents the perimeter.

Let the third side be S

S + 2x-3y + x+2y = 5x + 2y

S = 5x+2y - 2x + 3y - x - 2y

= 2x + 3y

check:

What is the sum of (x+2y) + (2x-3y) + (2x+3y) ??

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