Instructional Video
Khan Academy

Khan Academy: Algebra: Testing a Solution for a System of Equations

9th - 10th Standards
This video demonstrates how to test a solution for a system of equations by substituting the values back into each equations. [2:38]
Instructional Video
Khan Academy

Khan Academy: Algebra: Independent and Dependent Systems

9th - 10th
This video demonstrates what it means to be a dependent or independent system of linear equations. It also shows how to determine if a given system is dependent or independent. [5:10]
Instructional Video
Khan Academy

Khan Academy: Graphically Solving Systems

7th - 9th Standards
In this video lesson students learn to solve systems of equations by the graphing method. After graphing, students then determine the number of solutions the system has by looking at the intersection of the lines.
Instructional Video
Khan Academy

Khan Academy: Algebra: Consistent and Inconsistent Systems

9th - 10th
This video demonstrates what it means to be a consistent or inconsistent system of equations and how to determine if a given system is consistent or not. [5:28]
Instructional Video
PBS

Wnet: Thirteen: Get the Math: Math in Special Effects Teams Solved the Challenge

9th - 10th
The teams use a light probe and tape measure to record light intensity at different distances from the source. They then examine the data and use different methods to represent the mathematical relationship between light intensity and...
Instructional Video
Sophia Learning

Sophia: Simplifying an Equation: Lesson 5

9th - 10th
From this lesson, you will discover how to make an equation easier to solve by applying simplifying rules to equations. It is 5 of 12 in the series titled "Simplifying an Equation."
Instructional Video
Sophia Learning

Sophia: Simplifying an Equation: Lesson 7

9th - 10th Standards
From this lesson, you will discover how to make an equation easier to solve by applying simplifying rules to equations. It is 7 of 12 in the series titled "Simplifying an Equation."
Instructional Video
Sophia Learning

Sophia: Singular and Non Singular Matrices: Lesson 2

9th - 10th
This lesson introduces the notion of a singular matrix and provides a shortcut to determine whether or not a given 2x2 matrix is singular. It is 2 of 5 in the series titled "Singular and Non-Singular Matrices."
Instructional Video
Sophia Learning

Sophia: Writing Systems of Equations With Augmented Matrices

9th - 10th Standards
This lesson demonstrates how to write systems of equations as augmented matrices. Students can watch a tutorial video and then take a quiz.
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Systems and Rate Problems 2

9th - 10th
The word problem in this video explores systems and rates. Students watch a video example on how to solve a systems of equations and rate word problem. [10:04]
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Systems and Rate Problems 3

9th - 10th
The word problem explores systems and rates. Students watch a video example on how to solve a systems of equations and rate word problem. [4:56]
Instructional Video
Khan Academy

Khan Academy: Systems of Equations Word Problems: Officer on Horseback

9th - 10th
This video demonstrates how to set up and solve a system of equations in order to answer a question posed in a word problem.
Instructional Video
Khan Academy

Khan Academy: Algebra: Systems of Equations

9th - 10th
This algebra resource demonstrates how to solve systems of equations. Students learn about the concept through a video tutorial.
Instructional Video
Khan Academy

Khan Academy: Systems of Equations

9th - 10th Standards
This video demonstrates how to solve systems of linear equations in two variables.
Instructional Video
Khan Academy

Khan Academy: Systems of Equations: Two Passing Bicycles Word Problem

9th - 10th
This video shows how to apply systems of equations to a word problem about two people passing each other on bicycles.
Instructional Video
Khan Academy

Khan Academy: Systems of Equations Word Problems: Passed Bike Word Problem

9th - 10th
A demonstration of an algebra word problem involving a train passing a bike.
Instructional Video
Khan Academy

Khan Academy: Systems of Equations: Problem Solving Word Problems 2

9th - 10th
A video that demonstrates how to set up and solve systems of equations in order to answer word problems.
Instructional Video
Planet Nutshell

Planet Nutshell: Math Shorts: Solving Simultaneous Linear Equations

7th - 9th
Planet Nutshell Math Shorts provide animated videos that explain various math topics. On this site students learn about simultaneous linear equations.
Instructional Video
Virtual Nerd

Virtual Nerd: What's a System of Linear Equations?

7th - 9th Standards
A system of linear equations is a set of linear equations with the same variables. To solve a system of equations, you need to figure out the variable values that solve all the equations involved. This tutorial will introduce you to...
Instructional Video
Virtual Nerd

Virtual Nerd: What's a Solution to a System of Linear Equations?

7th - 9th Standards
Follow along as this tutorial uses an example to explain the solution to a system of equations. [2:02]
Instructional Video
Khan Academy

Khan Academy: Systems of Equations Word Problems: Walk & Ride

8th - 9th
Learn how to solve problems by using systems of equations in this video. Explore how to solve real-world problems using this approach. [6:59]
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Solving Systems by Substitution 3

9th - 10th
The video [6:04] examines systems of equations. Students watch an example on how to solve systems by substitution.
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Solving Systems by Elimination 3

9th - 10th
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. [4:57]
Instructional Video
Khan Academy

Khan Academy: Solving Systems With Elimination: Solving Systems by Elimination

9th - 10th
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.