This algebra video tutorial explains how to solve system of equations with 3 variables and with word problems. It contains two example word problems on investment and on total value.
Systems of Linear Equations - 2 Variables:
Systems of Equations - Fractions & Decimals:
One Solution, No Solution or Many Solutions?
Systems of Equations - Substitution Method:
Solving Systems of Equations By Graphing:
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Systems of Linear Equations - 3 Variables:
Systems of Equations - Word Problems:
Systems of Quadratic Equations:
Systems of Nonlinear Equations:
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Final Exams and Video Playlists:
Full-Length Videos and Worksheets: