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Solving systems with substitution

7 videos
1 skill
This tutorial is focused on solving systems through substitution. It has more examples than you can shake a dog at. As always, pause the video and try to solve before Sal does. Once you get a hang for things, feel free to skip the rest of the videos and try the exercises. The best way to learn, after all, is to do rather than just listen! Common Core Standards: 8.EE.C.8, 8.EE.C.8b

Example 1: Solving systems by substitution

VIDEO 3:44 minutes
Solving systems by substitution 1

Example 2: Solving systems by substitution

VIDEO 4:06 minutes
Solving systems by substitution 2

Example 3: Solving systems by substitution

VIDEO 6:04 minutes
Solving systems by substitution 3

The substitution method

VIDEO 4:39 minutes
The Substitution Method

Substitution method 2

VIDEO 3:44 minutes
Substitution Method 2

Substitution method 3

VIDEO 5:58 minutes
Substitution Method 3

Practice using substitution for systems

VIDEO 4:21 minutes
Example doing Khan Academy systems of equations exercise at: http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/systems_of_equations_with_substitution

Systems of equations with substitution

PRACTICE PROBLEMS
Solve systems of equations using substitution