Question 521970
Perimeter =	40	feet												
Length  	1	(	2	x	-7	)							
Width 	=		x	ft										
Perimeter =2(L+W)														
Perimeter =	2(((2x-7)+x)
Perimeter =	2((2x-7	+x)			
Perimeter =4x-14+2x				
40	=6x-14								
40	-=6x								
40+14=6	x									
54=6x											
x=9	ft	Width 										
Length  	=11ft