Introduction to Systems of Linear Equations: Two Variables

What you’ll learn to do: Find the solutions to a two linear equation system

Skateboarders at a skating rink by the beach.

(credit: Thomas Sørenes)

A skateboard manufacturer introduces a new line of boards. The manufacturer tracks its costs, which is the amount it spends to produce the boards, and its revenue, which is the amount it earns through sales of its boards. How can the company determine if it is making a profit with its new line? How many skateboards must be produced and sold before a profit is possible? In this section we will consider linear equations with two variables to answer these and similar questions.


Did you have an idea for improving this content? We’d love your input.

Improve this pageLearn More