# Systems of Equations - Substitution

## introduction

Mobile Devices:

Tablets and smartphones can access the Substitution Animations on YouTube.

Workbook:

Download and print the Substitution Workbook.

Interactive Graphs:

All of the Substitution Graphs are interactive on Desmos.

Lesson Transcript:

All of the Substitution Notes are available as a video transcript.

Topics Covered:

- Determining when substitution is the most appropriate method to use when solving a system of equations
- Interpreting the results of solving a system
- Problem solving (cutting a cable into two parts, coins, driving from Edmonton to Lloydminster and back, determining how many marks were scored in each part of an exam, interest earned on investments, dried fruit mixtures)

Curriculum Connection: Relations & Functions 9.1 - 9.8

Videos: Desktop computers and laptops require Adobe Flash Player and the printable notes require Adobe Reader. Smartphones and tablets will not be able access the Flash content on this page (resulting in empty space below). Use the YouTube alternative.