Question

last one-- The length of a rectangle is 3 feet less than twice the width. The perimeter is 84 feet. Find the length and width.

Answer 1

length l, width w
l= 2w-3
perimeter 2(l+w) = 84
2(2w-3+w)=84
-6+6w=84
w=90/6= 15
width=15, length= 27

Answer 2

thanks born2die20!