The length of a rectangle is 3 ft less than twice the width if the perimeter of the recent 85 ft find the width and length

Respuesta :

Let x = width
2x-3= length 

2W + 2L = Perimeter
2(x) + 2(2x-3) = 84
2x+4x-6=84
6x-6=84 
6x-6=84+6
6x=90
x=15 ft Width 
2x-3 = 2*15-3 = 27 ft Length