Question

The length of a rectangle is 2 units more than 6 times its width, w. Which expression represents the perimeter of the rectangle?

Answer 1

The length is twice the width. So, let w = width, and 2w = length. The perimeter is 2 x w + 2 x 2w, or 6w. 6w = 24, so w = 4.

Explanation: