# Systems of Equations and Inequalities

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 Systems of equations with Sal Khan     In this video, Salman Khan of Khan Academy explains systems of equations. Khan Academy Online Scientific Calculator     A helpful scientific calculator that runs in your web browser window. Holt Online Learning Algebra II: Absolute Value Equations and Systems of Equations     This video includes sample exercises and step-by-step explanations of absolute value equations and systems of equations for the California Standards Test. Khan Academy Online Math Examples     Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra. Paul's Online Math Notes Solving a System of Linear Equations     Need help solving systems of linear equations? In this video, a Tutor.com algebra tutor uses the substitution method to solve a system of linear equations, and shows you how to use graphing to make sure you don’t get tricked by systems of parallel lines that have no solution. You’ll graph the linear equations, find their point of intersection, solve them using substitution, and check your work to make sure it all makes sense. Tutor.com Early Edge: Graphing Inequalities     In this Early Edge video lesson, you'll learn more about Graphing Inequalities, so you can be successful when you take on high-school Math & Algebra. The Princeton Review Early Edge: Working with Inequalities     In this Early Edge video lesson, you'll learn more about Working with Inequalities, so you can be successful when you take on high-school Math & Algebra. The Princeton Review Types of systems of equations     Explains the difference between inconsistent, dependent and independent systems. algebra.com