A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. This resource explains this method by showing an example along with a video.

Based on our understanding of the balance beam model, we know that that to keep a true equation, we always have to do the same thing to both sides of an equation. But how do we know what to do to both sides of the equation? Learn to...

This is a simplified explanation about exponents along with a few rules for combining numbers with exponents.

Spanish content. Clear step by step directions and examples on how to solve inequalities with one variable. A great supplement in algebra class for the Spanish speaking student.

The events of the life of Pierre Laplace are presented in a timeline form. The biographical information is taken from "A Short Account of the History of Mathematics" by W. W. Rouse Ball (4th Edition, 1908).