Khan Academy: Solving Systems With Substitution: The Substitution Method

Can you handle one more method? It just might be your favorite! Building on the skills learned in the previous lessons in the series, scholars now learn the elimination method. The video examines problems of varying difficulty. 

How many large and small watermelons did he sell? Just use the given information to write and solve a system of equations! The two videos accompanying the lesson explain the substitution method and then introduce problem solving. The...

Lets keep the system working and show learners the three ways to solve linear systems of equations. Each method includes step-by-step instructions to work their way through the problem. The same problem is used for each method to show...

This video demonstrates how to solve a word problem by setting up and solving a system of equations using the substitution method.

This video demonstrates how to solve a system of linear equations by substitution.

This video demonstrates how to solve a system of linear equations using the linear combination elimination method.

This video demonstrates how to solve a system of linear equations using the linear combination and elimination method.

This video demonstrates how to set up and solve a system of linear equations using the elimination method.

This video demonstrates how to solve a system of linear equations by substitution.

The video example explores systems of equations. Students watch an example on how to find and graph the solutions to a system using the elimination method.