Intermediate Algebra Chapter 2 Systems of Linear Equations and Inequalities Section 2.1 Systems of Linear Equations Section 2.2 Solving Systems of Equations Using the Substitution Method Section 2.3 Solving Systems of Equations Using the Elimination Method Section 2.4 Solving Linear Inequalities Section 2.5 Absolute Value Equations and Inequalities Section 2.6 Solving Systems of Linear Inequalities