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Using Algebra – Collecting Terms

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Achbar the Egyptian is having great difficulty counting his camels! Can you help him?

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What about the Pyramids?

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And the sphinx?

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Exercise Simplify: 1.. 2.. 3.. 4.. 5..

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Is it possible for Achbar to add one camel to two pyramids? A camel and a pyramid are two totally different things, we cannot add them! Only terms are the same Let us collect them by adding

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Exercise Simplify: 1.. 2.. 3.. 4.. 5..

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Subtract What about: Subtracting camels is just as easy as adding them! One camel, c not 1c, we do not need the 1

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Subtract What about:

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Exercise Simplify: 1.. 2.. 3.. 4.. 5..

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Subtracting Different Terms What about: Since a camel and a pyramid are different things, we cannot subtract them! Cannot simplify!

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Subtracting Different Terms What about: Collect the pyramids first, then the camels.

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Subtracting Different Terms What about: The negative sign relates to variable c

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Exercise Simplify: 1.. 2.. 3.. 4.. 5..

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Worksheet Answer the questions on the worksheet in your books. Remember to follow the same method as that shown in the examples: Answers 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.

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Worksheet Answers 19. 20. 21. 22. 23. 24. 25. Well done!

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