How to Solve Systems of Equations with Three Variables

Miacademy & MiaPrep Learning Channel

This video serves as a comprehensive guide to solving systems of linear equations with three variables, expanding on previous knowledge of two-variable systems. Through the use of relatable word problems about age differences between friends and siblings, the narrator demonstrates how to translate verbal descriptions into algebraic equations. The video walks viewers through three primary methods of solving these systems: substitution, elimination, and graphing, highlighting the nuances and necessary steps for each when dealing with an added third variable.