Khan Academy: Algebra: Consistent and Inconsistent Systems

First Sal defines consistent and inconsistent equations. He then evaluates a system of linear equations to determine if they are consistent or not. This resource is very clear and would be a wonderful video to show prior to a test or at...

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]

Find the range of values of one variable that corresponds to a given value of the other variable in a system of two-variable linear inequalities. Students receive immediate feedback and have the opportunity to try questions repeatedly,...

This video demonstrates what it means to be a dependent or independent system of linear equations. It also shows how to determine if a given system is dependent or independent. [5:10]

The word problem in this video explores systems and rates. Students watch a video example on how to solve a systems of equations and rate word problem. [10:04]

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

This video demonstrates how to solve a word problem by setting and solving a system of linear inequalities. [8:09]

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]

This video demonstrates how to take a given point and test if it is a solution for a system of inequalities by using substitution. [1:15]

Step-by-step breakdown on how to convert centimeters into dekaliters of the metric system. This video also appears in the strand Arithmetic and Pre-Algebra: Ratios and Proportions. [5:16]