The length of a rectangle is 5 ft longer than its width. If the perimeter of the rectangle is 38 ft, find its area.

Ok so basically L=5+w

w=w

P=38

and A=?

well we know that P=all the four sides added so

38=2 (5+w) + 2w

38=10+2w+2w

38=10+4w

28=4w

w=7

so if L=w+5 then L=7+5 so L=12

A=LxW so A=12x7 A=84