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 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

Systems of equations word problems example: Nickles and quarters

VIDEO 5:58 minutes
Sal solves a word problem about the number of nickles and quarters in a piggy bank by creating a system of equations and solving it.

How to solve a system of linear equations with substitution (example)

VIDEO 4:21 minutes
Sal solves the following system of linear equations using substitution: -3x-4y=-2 and y=2x-5.

Solve systems of linear equations with substitution

PRACTICE PROBLEMS
Solve systems of equations where one of the equations is solved for one of the variables.