Curated OER
What is a Matrix?
Matrix, matrices, what? The instructor demonstrates how to set up a matrix and explains the rows and columns. There are many uses for matrices and this is just the beginning.
Curated OER
What Are the Ways You Can Solve a System of Linear Equations?
Confronted with a system of equations? This tutorial briefly describes the three ways systems of equations can be solved. Substitution, graphing, and the elimination method are all covered. The only thing this video is missing is example...
Curated OER
How Do You Check Your Answer When You Have Two Equations?
Show your class how to check their answers for a system of linear equations. This video clarifies how to plug in answers and solve each equation. This is a straightforward video that could be useful to learners as the work on their...
Curated OER
How Do You Solve a System of Equations Using Substitution if One Equation is a Quadratic?
Two equations. Wait! They don't look like the same kind of equations. How do you solve a system of equations when one equation is linear and the other is a quadratic? Watch this video as the instructor illustrates how to use the...
Curated OER
What's a Consistent Independent System of Equations?
Define a system of equations with only one solution? Sure! If you have a system of equations with only one solution you'll find that it results in an ordered pair (2,2). This means that those equations intersect at only one point.
Curated OER
What's Another Way of Solving a System of Equations Using the Elimination by Multiplication Method?
Another look at solving systems of equations by using the elimination method. In this process, the instructor first uses the distributive property to multiply one of the equations to set it up for the elimination step. Yes, there are...
Curated OER
How Do You Solve a System of Equations Using the Elimination by Multiplication Method?
The elimination method is so called because the objective is to eliminate one of the variables to solve for the remaining variable. There is an extra step in this system of equations as the original equations are not similar enough. So...
Curated OER
How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
Check out this video and see how the instructor explains how to solve a system of equations by using the elimination method. There are several steps in solving this equation: multiplying the equation by negative one, subtracting a...
Curated OER
Graphing Systems of Equations - Algebra Help
One way to solve a system of equations is to graph two equations and find the point of intersection. This method is demonstrated on a whiteboard to help your mathematicians understand the concept. An easy way to check your solution is...
Curated OER
How Do You Solve a System of Equations Using the Substitution Method?
Watch this video to learn how to find the solution to a system of equations with the substitution method! A teacher will lead you through each step necessary, explaining her steps and the reasoning behind her decisions. After watching...
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 Check Your Answer When You Have Two Equations?
Show your class how to check their answers for a system of linear equations. This video clarifies how to plug in answers and solve each equation. This is a straightforward video that could be useful to learners as the work on their...
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...
Curated OER
What is a Matrix?
Matrix, matrices, what? The instructor demonstrates how to set up a matrix and explains the rows and columns, the dimensions. There are many uses for matrices and this is just the beginning.
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 Three Equations
How does solving a system of three equations compare to solving two-variable equations? The video tutorial shows how to utilize the same methods of substitution and elimination to solve a system of three equations. The instructor solves...
Krista King Math
Number Word Problems as a System of Two Equations
Here's a video that model how to apply systems of equations to solving number word problems. Pupils learn problem solving strategies to writing equations to represent number word problems. After writing the equations, the instructor...
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 Two Equations with Two Variables?
Two equations, two unknown variables. Use the substitution method to solve for one of the variables. Then plug that value into one of the equations to solve for the other variable. Finally plug both values into one of the original...
Curated OER
How Do You Graph a System of Equations With No Solution?
Two equations. What's the solution to this system? How can you solve it? Can you write the two equations in slope-intercept form? Yes, you can. Now graph each equation. Look, the lines are parallel. What does that mean? That means there...
Curated OER
How Do You Solve a System of Equations Using the Substitution Method?
Watch this video to learn how to find the solution to a system of equations with the substitution method! A teacher will lead you through each step necessary, explaining her steps and the reasoning behind her decisions. After watching...
Curated OER
How Do You Use a System of Linear Equations to Find Coordinates on a Map?
It seems like a pretty complicated word problem in which Batman is trying to locate the Riddler. The instructor does a good job of setting up the two equations that will help Batman locate the Riddler. Two equations? Yes, a system, and...
Curated OER
How Do You Solve a System of Equations by Graphing?
Two equations. What's the solution to this system? How can you solve it? Can you write the two equations in slope-intercept form? Yes, you can. Now graph each equation. Look, the lines intersect. What does that mean? That means that...