Curated OER
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
Virtual Nerd
How Do You Find the Intersection of Percent Data by Using a Venn Diagram?
When you first read this word problem it seems pretty daunting. The instructor explains how to identify the variables, how to convert percentage to whole numbers, and how to set up the problem and solve it. She uses a Venn diagram as a...
FuseSchool
Simultaneous Equations by Elimination
Take a methodical approach—solve systems one at a time. Young mathematicians learn to solve simultaneous equations (system of equations) algebraically. The preferred method here is elimination.
Krista King Math
System of Two Equations with Subscripts
Show how variables with subscripts are equivalent to those without through a video that shows an example of a linear system with subscripted variables. The instructor uses elimination to solve the system.
Krista King Math
Elimination to Solve a System of Two Equations
Here's a video that demonstrates the elimination method of solving linear systems with two examples. One example is set up and ready for elimination and the other requires multiplying one equation.
Curated OER
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
Curated OER
How Do You Solve a System of Equations Using the Elimination by Addition Method?
How can a value of x and y satisfy a solution to two equations? It doesn't seem possible. Given a system of linear equation, find a solution that satisfies both equations. It can be done. In this video, the instructor demonstrates how to...
Khan Academy
Khan Academy: Algebra: Systems of Equations
This video demonstrates how to solve systems of linear equations in two variables using the elimination method. There are three sample problems shown. [9:57]
Khan Academy
Khan Academy: Algebra: Addition Elimination Method 1
This video demonstrates how to solve a system of linear equations using the elimination method. [3:38]
Khan Academy
Khan Academy: Algebra: Solving Systems by Elimination 3
This video demonstrates how to solve and graph a given system of equations by eliminating a variable. [4:58]
Khan Academy
Khan Academy: Algebra: Addition Elimination Method 4
This video demonstrates how to set up and solve a system of linear equations using the elimination method. [2:38]
Khan Academy
Khan Academy: Algebra: Addition Elimination Method 2
This video demonstrates how to solve a system of linear equations using the linear combination and elimination method. [4:25]
Khan Academy
Khan Academy: Algebra: Addition Elimination Method 3
This video demonstrates how to solve a system of linear equations using the linear combination elimination method. Results in a dependent system. [5:05]
Khan Academy
Khan Academy: Algebra: Solving Systems of Equations by Multiplication
This video demonstrates more examples of how to solve systems of equations by elimination. The examples in this video require that one or both equations be scaled in order to eliminate a variable. [12:00]
Khan Academy
Khan Academy: Algebra: Solving Systems by Elimination 2
This video demonstrates how to solve a system of linear equations by eliminating a variable. The given system is of two equations in two variables. [3:45]
Khan Academy
Khan Academy: Algebra: Solving Systems by Elimination
This video demonstrates how to set up and solve a system of equations in order to solve a word problem. The system is solved using the elimination method. [5:51]
Khan Academy
Khan Academy: Algebra: Solving Systems of Equations by Elimination
This video gives two examples of how to solve systems of equations by elimination. The first example gives the system of equation to be solved and the second example is a word problem that involves setting up and solving the system of...
Khan Academy
Khan Academy: Algebra Ii: Solutions to Three Variable System
This video demonstrates how to solve a system of equations with three variables in order to determine if the system has no solution or infinite solutions. The system is solved using the elimination method. [4:34]
Khan Academy
Khan Academy: Algebra I Worked Examples: Solving Systems by Elimination 3
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]
Khan Academy
Khan Academy: Solving Systems With Elimination: Solving Systems by Elimination
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.
Khan Academy
Khan Academy: Solving Systems With Elimination: Addition Elimination Method 4
This video demonstrates how to set up and solve a system of linear equations using the elimination method.
Khan Academy
Khan Academy: Solving Systems With Elimination: Addition Elimination Method 2
This video demonstrates how to solve a system of linear equations using the linear combination and elimination method.
Khan Academy
Khan Academy: Solving Systems With Elimination: Addition Elimination Method 3
This video demonstrates how to solve a system of linear equations using the linear combination elimination method.
Khan Academy
Khan Academy: Solving Systems of Equations by Multiplication
This video demonstrates how to solve systems of equations by elimination.