Chapter 7: Systems of Equations and Inequalities 7.1 Systems of Linear Equations in Two Variables MAC1105 7_1 Practice Problems MAC1105 7_1 Practice Problems Solutions 7.5 Systems of Nonlinear Equations MAC1105 7_5 Practice Problems MAC1105 7_5 Practice Problems Solutions 7.6 Systems of Inequalities MAC1105 7_6 Practice Problems MAC1105 7_6 Practice Problems Solutions