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posted by Perry on Thursday, January 17, 2013 at 7:41pm.
Perimeter of pentagon is 9x-1. Find length of missing side. Sides are 3x-4; 2x+3; x+1; x-5
3x-4 + 2x+3 + x+1 + x-5 7x - 5 plus the missing side is 9x-1 9x-7x is 2x -5 - (-1) is -4 So the missing side is 2x-4
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