1. Missy McCarthyOkemos High School S OLVING S YSTEMS USING E LIMINATION

2. L EARNING T ARGET What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary

3. W HEN THE SUBSTITUTION METHOD GETS COMPLICATED … What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary Let’s try to solve this system using substitution.

4. W HAT IS THE E LIMINATION METHOD ? What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary Goal: Combine the two equations in a way that eliminations on the variables.

5. N O MULTIPLICATION NECESSARY What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary Solve using the Elimination Method.

6. M ULTIPLYING ONE EQUATIONS BY A FACTOR What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary Solve using the Elimination Method.

7. M ULTIPLYING BOTH EQUATIONS BY A FACTOR What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary Solve using the Elimination Method.

8. A PPLICATION What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying one equation Example: Multiplying both Application Summary

9. S UMMARY What you will learn Is substitution always the best method ? What is the elimination method? Example: No multiplying needed Example: Multiplying on equation Example: Multiplying both Application Summary