Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Augmented Matrices
Seventeen problems present a variety of practice working with augmented matrices. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button...
Other
Universidad Interamericana De Puerto Rico: Desigualidades
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.
Purple Math
Purplemath: Cramer's Rule
Cramer's Rule for solving a system of equations is presented here using an example of a system in three variables with three equations. The "everything," approach of solving for all three variables is shown as well as the "selective,"...
Wyzant
Wyzant: Basics of Word Problems
At this site from WyzAnt, learn the steps necessary to solve a word problem using algebra. Problems involve one-answer and multiple-answer solutions.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Completing the Square
Twenty problems present a variety of problems working with various aspects of completing the square to solve equations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem...
Interactive Mathematics
Interactive Mathematics: Determinants
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.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Compound Interest
Three problems offer practice with compound interest. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check each step of your...