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    Discrete Mathematics and Its Applications : Simplify the Expessions ( Direct Sums )

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    22. Simplify these expressions (+ = + inside a circle or 'direct sum')
    1. x + 0

    2. x + 1

    3. x + x

    4. x + x-bar

    For each topic, demonstrate a knowledge and capability by giving the following information:

    1) Problem Solution: (solution for an even number problem)

    2) Personal Observation: (personal comment on the topic including advice to others on how to study and understand it).

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    Solution Summary

    Direct sums are found. The applications to simplify expressions are determined.