<PRE><B>Question 82555</B>
Let x=width
Then 2x+4=length

Perimeter of a rectangle =2W+2L.  So:

2x+2(2x+4)=56  get rid of parens

2x+4x+8=56  subtract 8 from both sides
2x+4x+8-8=56-8  collect like terms

6x=48  divide both sides by 6
x=8 in--------------------------------width
2x+4=2*8+4=20 in--------------------length

CK

Perimeter equals 56 in

2(8)+2(20)=56

16+40=56
56=56


Hope this helps----ptaylor</PRE>