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Lesson Plan--Systems of Equations--Lesson 3--Solving by Elimination

Lesson Plan: Solving Systems of Equations by Elimination

In this third lesson of the Systems of Equations Unit, students will learn how to solve systems of equations using the elimination method. This algebraic technique allows students to eliminate one variable by adding or subtracting equations, making it easier to find the solution.

Students will:

  • Understand when elimination is the most effective method for solving a system
  • Learn step-by-step how to add or subtract equations to eliminate a variable
  • Use multiplication to create equivalent equations when necessary
  • Practice solving systems of equations using elimination in various scenarios
  • Apply elimination to solve real-world word problems

Designed for Algebra 1 and Algebra 2 students, this lesson aligns with Common Core standards and reinforces students’ ability to manipulate equations efficiently. Mastering elimination helps students develop strong algebraic reasoning and prepares them for more advanced mathematical concepts.

This is the third lesson in an eight-part unit on systems of equations. Future lessons will focus on comparing solution methods and applying systems of equations to real-world contexts.

Subscribers to Media4Math can download these lesson plans in PDF format for easy classroom use.

Common Core Standards CCSS.MATH.CONTENT.HSA.REI.C.6
Grade Range 9 - 12
Curriculum Nodes Algebra
    • Linear Systems
        • Solving Systems of Equations
Copyright Year 2025
Keywords linear systems, elimination method, solving a system through elimination