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9 April, 17:32

Which of the following expressions is correct?

- (-21) = 21

- (21) = 21

- (-21) = - 21

(-21) = 21

+3
Answers (2)
  1. 9 April, 18:07
    0
    A is the correct answer
  2. 9 April, 19:59
    0
    (-21) = 21 is the correct answer
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