Virtual Nerd
Virtual Nerd: How Do You Solve a One Step Inequality Using Subtraction?
Learn how to solve an inequality using the subtraction property. This video will demonstrate the process using a number line. [3:49]
Khan Academy
Khan Academy: Algebra I Worked Examples: Solving Systems by Substitution 1
The video examines systems of equations. Students watch an example on how to solve systems by substitution. [3:44]
Sophia Learning
Sophia: Solving Linear Systems by Substitution
Use substitution to solve linear systems.