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18 September, 03:10

9 - (-9) How do you show your work for this question?

+1
Answers (2)
  1. 18 September, 03:23
    0
    Answer: the answer is 18

    Step-by-step explanation:

    It is a double negative so just show below this equation

    9 - (-9)

    9+9. Because of double negative

    18
  2. 18 September, 05:55
    0
    Since there are two subtraction symbols they turn into a plus sign. 9+9=18.
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