Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Solving Systems by Substitution 1

9th - 10th Standards
The video examines systems of equations. Students watch an example on how to solve systems by substitution. [3:44]
Instructional Video
Khan Academy

Khan Academy: Systems of Equations Word Problems: Mixture Problems 2

9th - 10th Standards
This video demonstrates how to solve a mixture problem by setting up and solving a system of equations.
Instructional Video
Khan Academy

Khan Academy: Solving Systems: 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.
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Solving Systems by Substitution 2

9th - 10th
The video examines systems of equations. Students watch an example on how to solve systems by substitution. [4:06]
Instructional Video
Khan Academy

Khan Academy: Solutions to Systems: Independent and Dependent Systems

9th - 10th
Students watch a video tutorial to learn the difference between an independent and dependent system of equations.
Instructional Video
Khan Academy

Khan Academy: Algebra I Worked Examples: Solving Systems by Elimination 2

9th - 10th
The video example explores systems of equations. Students watch an example on how to find the solutions to a system using the elimination method. [3:45]
Instructional Video
Khan Academy

Khan Academy: Systems With Three Variables: Solutions to Three Variable System 2

9th - 10th
This lesson video shows how to solve a system of three equations with three unknown.
Instructional Video
Khan Academy

Khan Academy: Systems Overivew: Talking Bird Solves Systems With Substitution

9th - 10th
A lesson video solving systems of equations with substitution.
Instructional Video
Khan Academy

Khan Academy: Yoga Plans: Super Yoga Plans Basic Variables and Equations

9th - 10th
Students explore the basics of systems of equations by looking at two yoga plans to determine which is a better deal.
Instructional Video
Khan Academy

Khan Academy: Yoga Plans: Super Yoga Plans Solving Systems by Elimination

9th - 10th
Students explore a systems of equations problem that can be solved by using the elimination method to solve for the number of sessions at which both plans cost the same.
Instructional Video
Khan Academy

Khan Academy: Yoga Plans: Super Yoga Plans Solving Systems by Substitution

9th - 10th
This video is a continuation of our Yoga plan debate by determining where the lines representing the two plans intersect. Students use the substitution method to solve a system of equations.
Instructional Video
Khan Academy

Khan Academy: Non Linear Systems of Equations: Systems of Nonlinear Equations 2

9th - 10th Standards
A video demonstration on how to find the solution of two systems of equations.
Instructional Video
Khan Academy

Khan Academy: Systems Overivew: Practice Using Substitution for Systems

9th - 10th
This video lesson shows how to solve a system of two equations by using the substitution method.
Instructional Video
Khan Academy

Khan Academy: Systems Overivew: Solving the Troll Riddle Visually

9th - 10th
This video shows how to solve the system of equations visually.
Instructional Video
Khan Academy

Khan Academy: Thinking About Solutions to Systems: Infinite Solutions to Systems

9th - 10th
Students can review systems of equations and inequalities with infinite solutions in this short video.
Instructional Video
Khan Academy

Khan Academy: Inconsistent Systems of Equations

9th - 10th
Review systems of equations without a solution in this short video.
Instructional Video
Khan Academy

Khan Academy: Systems Overivew: Trolls, Tolls, and Systems of Equations

6th - 8th
A troll forces us to use algebra by solving a system of equations to figure out the make-up of his currency.
Instructional Video
Khan Academy

Khan Academy: Thinking About Solutions to Systems

9th - 10th
Students explore systems of equations by looking at the number of possible solutions of a system.
Instructional Video
Khan Academy

Khan Academy: Non Linear Systems of Equations: Systems of Nonlinear Equations 3

9th - 10th Standards
A demonstration on how to find the solution of a linear and a nonlinear systems of equations graphically and by the substitution method.
Instructional Video
Khan Academy

Khan Academy: Systems Overivew: Solving Systems Graphically

9th - 10th
This video shows solving systems graphically.
Instructional Video
Sophia Learning

Sophia: Identifying Parallel, Intersecting, and Identical Lines

9th - 10th Standards
This video lesson demonstrates how to determine if linear equations are parallel, identical, or intersecting. Students can check their understanding with an assessment.
Instructional Video
Sophia Learning

Sophia: Non Linear Systems of Equations

9th - 10th
Use substitution and elimination to solve a system of nonlinear equations with variables. Assess learning with a quiz.
Instructional Video
Sophia Learning

Sophia: Solving Linear Systems by Graphing

9th - 10th Standards
Solve linear systems of equations using a graph and take a quiz to assess learning.
Instructional Video
Sophia Learning

Sophia: The Meaning of Systems of Equations

9th - 10th
Determine how to solve systems of equations and how they can be used to represent useful information. Take quiz to assess learning.