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31 August, 01:56

Simplify each expression.

-x + x

- (a + b) + (a + b)

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Answers (1)
  1. 31 August, 05:47
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    Step-by-step explanation:

    -x + x - (a + b) + (a + b)

    Distribute the negative sign into (a + b).

    -x + x - a - b + a + b

    Notice how each term has itself and an opposite (For example x and - x)

    These terms add up to zero.

    Thus, when all of the terms are added up, the result is 0.
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