CPM Homework Banner

Home > CCA > Chapter 4 > Lesson 4.1.1 > Problem 4-14


Solve this problem by writing and solving an equation. Be sure to define your variable.

A rectangle has a perimeter of inches. Its length is one less than three times its width. What are the length and width of the rectangle?

Set up two equations:

Substitute for and solve the equation:

Width is inches and length is  inches.