Question

Learn with an example

The perimeter of a rectangular deck is 214 feet. It is 42 feet wide. How long is it?

Answer 1

65 feet = L

Explanation:

set up equation

P = 2L + 2W

plug in W

214 = 2L + 2(42)

multiply

214 = 2L + 84

subtract 84

130 = 2L

divide by 2

65 = L