Use this site to see how graphing and substitution are used to solve systems of equations. The examples have systems that have one, infinite, or no solutions. The site is set up to see the solutions step by step.

Gain an understanding of the different ways to solve equations by viewing examples and a video lesson. [2:21]

A nice tutorial on how to graph linear equations. Goes through the process step by step and gives numerous examples.

Twenty-five problems present a variety of practice solving absolute value equations as two linear equations and a compound inequality for the absolute value inequality. Also, there is practice graphing, checking solutions and finding...

Solve systems of equations with multi-step elimination (e.g., a manipulation is needed in order for x-values and y-values to cancel each other out). Students receive immediate feedback and have the opportunity to try questions...

In Spanish. Everything you want to know about linear equations in easy to understand, step by step explanations. Discusses two variable equations, and different methods to solve them, slope, and more. Also provides practice problems for...

Explains the steps to take when solving absolute value equations that have either one or two absolute values. Demonstrates with six example problems.

Learn how to solve a system of nonlinear equations using the substitution and the elimination methods. This tutorial offers definitions, problems and step-by-step solutions, and practice exercises for you to complete and check.

Using determinants and Cramer's Rule, systems of two and three variables are solved step by step. Several examples are presented to demonstrate how Cramer's Rule is used.