Question

The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the pool by writing and solving a system of equations.

Answer 1

Let length = x
Let width = y

x - 3 = 2y
2x + 2y = 72

Answer 2

length (x) is 3 feet more than twice the width (y). Therefore 3 feet less on the length is equal to twice the width. That is how I got the first equation

Answer 3

The second is the perimeter. So the perimeter is the width and the length twice.