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.

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.

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...

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...

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...

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...

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...

Since the focus of this video is on explaining the solution to a system of equations, the lecturer does not work through the problem. Instead, she points out that the solution should be an ordered pair that makes each equation a true...

What is a system of equations? To put it simply, it's a set of equations with the same variables. If the equations happen to be linear equations, then it's a system of linear equations. Systems of equations can be solved, but that's...

Two equations and two unknown variables in a word problem. Don't cry! Follow the instructor through these nine steps to find the solutions. Identify the variables, write the equations, solve for one of the variables, use the substitution...

How can a math problem have an infinite number of solutions? No way! There has to be just one answer. Follow along as the instructor walks you through this explanation and shows you how a math problem can have an infinite number of...

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...

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...

The quintessential word problem that makes everyone scream and run away. But wait, come back! Time, distance, when will they get there? You are really only working with one formula: distance= rate times time. You can do this. View this...

Since the focus of this video is on explaining the solution to a system of equations, the lecturer does not work through the problem. Instead, she points out that the solution should be an ordered pair that makes each equation a true...

This word problem on simple interest has a bit of a twist. When you read this word problem it boggles the mind. I know, it boggled mine. But never fear, the instructor takes you through this seemingly complicated interest problem...

In this video lesson students learn how to graph a system of equations that has no solution.

This website provides a tutorial video for students to learn how to determine the number of solutions a system of equation has by examining the graph of the system. After reviewing the video tutorial students can then attempt practice...

This website provides a tutorial video for students to learn how to determine the number of solutions a system of equation has by examining the graph of the system. After reviewing the video tutorial students can then attempt practice...

From this lesson, you will discover how to make an equation easier to solve by applying simplifying rules to equations. It is 1 of 12 in the series titled "Simplifying an Equation."

This video demonstrates how to solve several test questions related to systems of equations and systems of inequalities. [12:56]

This video demonstrates examples of special systems of equations that either have no solution or an infinite number of solution. These types of systems are called consistent or inconsistent systems. [15:18]

This video demonstrates how to set up and solve a system of equations in order to answer a question posed in a word problem. The solution utilizes the equation d=rt. [8:54]

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]