Question

Makayla is taking a math course and is working with the perimeter of rectangles. She knows the perimeter and length of her rectangle but wants to solve for the width. Rearrange the following equation for W, where P is the perimeter, L is the length, and W is the width of the rectangle.

P = 2L + 2W

Answer 1

Answer is P - 2L / 2

Step by step

- Subtract 2L from both sides of the equation to isolate W

P = 2L -2L + 2W

P -2L = 2W

- Divide both sides of the equation by 2 to solve for W

P-2L/2 = 2/2 W

P - 2L /2 = W

So W = P - 2L/2 is your answer