Question 469983
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Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
length of the garden is 4 feet less than twice the width
Let x and (2x-4) represent the width and length respectively
  2(2x-4) + 2x = 52ft
        6x = 60ft
         x = 10ft, the width.  The length is 16ft

CHECKING our Answer***
  2*16ft + 2*10ft = 52ft