4: Systems of Linear Equations Last updated Oct 13, 2022 Save as PDF 3.9.2: Practice Test 4.1: Introduction Page ID114151 OpenStaxOpenStax ( \newcommand{\kernel}{\mathrm{null}\,}\) 4.1: Introduction4.2: Solve Systems of Linear Equations with Two Variables4.3: Solve Applications with Systems of Equations4.4: Solve Mixture Applications with Systems of Equations4.5: Solve Systems of Equations with Three Variables4.6: Solve Systems of Equations Using Matrices4.7: Solve Systems of Equations Using Determinants4.8: Graphing Systems of Linear Inequalities4.9: Chapter Review4.9.1: Key Terms4.9.2: Key Concepts4.10: Exercises4.10.1: Review Exercises4.10.2: Practice Test