Question

A rectangular garden is 4 m longer than its wide. If the width is decreased by 1 m, and the length is increases by 5 m, the area is increased by 15m^2. Find the original dimension of the garden.

Answer 1

l=4+w
l*w=A1
(4+w)(w)=A1

Answer 2

i don't get it

Answer 3

length :l
width: w
area = l*w
l=w+4

Answer 4

area = l*w=(w+4)(w)

Answer 5

(w-1)(l+5)=area+15

Answer 6

oh got it.!

Answer 7

thanks