# Planes, Solutions, and Gaussian Elimination of a 3×3 Linear System

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Gaussian elimination is often used as a pen-and-paper exercise for solving simple linear systems, but the geometric counterpart may remain elusive during this exercise. Use this Demonstration to visualize the planes and solutions of a system of three linear equations as you apply elementary row operations to the system. Alternatively, simply play around with the parameters to visualize various types of solutions.

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Contributed by: Klaus Michelsen (March 2011)

Open content licensed under CC BY-NC-SA