The length of a rectangle is 3 centimeters less than twice its width. If the perimeter of the rectangle is 18 centimeters. find its dimensions

Question

I just need to find the length and width to equal the 18

Answer 1

Let w = the width

Let 2w - 3 = the length

P = 2l + 2w

18 = 2(2w-3) + 2w

18 = 4w - 6 + 2w

18 = 6w - 6

24 = 6w

w = 4 cm

length = 2(4) - 3 = 5 cm