1. 7.3B – Solving with Gauss Elimination GOAL: Create Row echelon form and solve with back substitution. Row operations to create Row echelon form – 1.) Switch any 2 equations – 2.) Multiply any equation by a # ≠0 ( or ÷) – 3.) Multiply an equation by a # and ADD to another equation. The SUM will REPLACE one of the 2 equations you added.

2. Hints: General Steps to Gauss Elim. (may vary if variables missing)

3. Example: Solve with Gauss Elimination

4. Example: Solve using Gauss Elimination

5. Example: Solve with Gauss Elimination