Systems of equations are concepts that first show up in Algebra I. Systems of equations are problems with two or more equations that contain the same variables. There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.
Video Math Lesson: An Introduction to Systems of Equations
VIDEO
Video courtesy of KhanAcademy (YouTube)
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APA style
Introduction to Systems of Equations. (2013, March 2). In ClassBrain Math Tutorials . Retrieved 13:36, May 22, 2013, from http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/
MLA style
Cynthia Kirkeby, “Introduction to Systems of Equations.” ClassBrain Math Tutorials . 2 March 2013, 16:07 UTC. . 22 May 2013 <http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ >.
MHRA style
Cynthia Kirkeby, 'Introduction to Systems of Equations', ClassBrain Math Tutorials , 2 March 2013, 16:07 UTC, <http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ > [accessed 22 May 2013]
The Chicago Manual of Style
Cynthia Kirkeby, “Introduction to Systems of Equations.” ClassBrain Math Tutorials , http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ [accessed May 22, 2013].
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Cynthia Kirkeby, Introduction to Systems of Equations [Internet]. ClassBrain Math Tutorials; 2013 March 2, 16:07 UTC [cited 2013 May 22]. Available from: http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ .
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Introduction to Systems of Equations, http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ (last visited May. 22, 2013).
AMA style
Cynthia Kirkeby, Introduction to Systems of Equations. ClassBrain Math Tutorials. March 2, 2013, 16:07 UTC. Available at: http://www.classbrainmath.com/2010/03/introduction-to-systems-of-equations/ . Accessed May 22, 2013.