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28 January, 19:04

On a number line, the distance from zero to - 7 is 7 units.

Which equation demonstrates this concept?

A.

|-7| = 7

B.

|-7| = - 7

C.

72 = 49

D.

0 + 7 = 7

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Answers (1)
  1. 28 January, 19:38
    0
    Answer: Option A. |-7| = 7

    Solution:

    The distance is a positive value, then we must not take in account the sign, and using:

    |a| = -a if a<0

    with a=-7

    |-7| = - (-7)

    |-7| = 7
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