Question 673776
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
The length{{{highlight(y)}}} of a rectangular pool is 4 meters less than twice the width{{{highlight(x)}}}
    P = 2L + 2W = 142m
         L + W = 71m
          y + x = 71m    {{{y = 2x-4}}}
       (2x-4) + x = 71m
            3x = 75m
             x = 25m, the width.  the length is 46m