Use equivalent equations and the method of elimination to solve a system of equations.

• Students will identify equivalent equations.
• Students will solve a system of linear equations in two unknowns by adding equivalent equations to eliminate one variable.

• equivalent equations
• system of linear equations
• solution to a system

This lesson involves solving a system of linear equations in two variables. The emphasis is on helping students understand how to use equivalent equations and the method of elimination to solve a system. Students can combine elimination and substitution to solve systems more efficiently. Students can determine which method is most appropriate for solving a system.