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2 January, 18:32

3|x-1| > = 12

A. X> = - 3 or x< = 5

B. X = 5

C. X> = 5

D. X=5

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Answers (1)
  1. 2 January, 18:52
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    3|x-1| ≥ 12

    |x-1| ≥ 4. Remove the absolute signs:

    x - 1 ≥ 4 → x≥ 5

    and x-1 ≤ - 4 → x≤ - 3

    Then D. x ≤ - 3 or x ≥ 5
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