Virtual Nerd
How Do You Solve For a Variable In Terms Of Another Variable?
Two variables in an equation and you want to solve for one in terms of the other. Watch the instructor demonstrate the steps to isolate each variable. She will use the subtraction rule of equality and the division rule of equality to...
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
What's an Example of a Word Problem That Has a System of Linear Equations with Infinite Solutions?
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...
Virtual Nerd
How Do You Solve a More Complicated Interest Problem?
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...
Sophia Learning
Sophia: Graph of Solutions to Simultaneous Equations
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...
Study Pug
Study Pug: Express Linear Inequalities Graphically and Algebraically
Linear inequalities can be represented both graphically and algebraically. In this video, you will learn how to express linear inequalities as an equation and on a number line. [8:15]