21: Systems of Linear Equations Last updated Aug 13, 2020 Save as PDF 20.7: Review Exercises 21.1: Introduction Page ID46479 OpenStaxOpenStax ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy21.1: Introduction21.2: Solve Systems of Linear Equations with Two Variables21.2E: Exercises21.3: Solve Applications with Systems of Equations21.3E: Exercises21.4: Solve Mixture Applications with Systems of Equations21.4E: Exercises21.5: Solve Systems of Equations with Three Variables21.5E: Exercises21.6: Solve Systems of Equations Using Matrices21.6E: Exercises21.7: Solve Systems of Equations Using Determinants21.7E: Exercises21.8: Review Exercises