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Mastering Elimination in Systems of Equations: Addition and Subtraction Techniques

This lesson focuses on the elimination method for solving systems of equations using both addition and subtraction. Students will learn how to effectively eliminate one variable by manipulating the equations, either by adding or subtracting them. Key objectives include solving various systems of equations and understanding the concept of elimination. The lesson provides insight into handling coefficients and applying the appropriate methods based on whether they are the same or opposites. Homework assignments are included for practice.

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Mastering Elimination in Systems of Equations: Addition and Subtraction Techniques

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  1. Elimination Using Addition and Subtraction Lesson 6-3: Elimination Using Addition and Subtraction SOL A.4e

  2. Objectives • Solve systems of equations by using elimination with addition. • Solve systems of equations by using elimination with subtraction.

  3. Vocabulary! • Elimination: • The use of addition or subtraction to eliminate one variable and solve a system of equations.

  4. Solving by Elimination

  5. Coefficients *When the coefficients of a variable are the same, subtracting, the equations will eliminate the variable. When the coefficients are opposites, adding the equations will eliminate the variable.

  6. Homework! • Page 351 – 352 (2 – 22 even).

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