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29 May, 22:08

21 = 3 * show how you got the answer

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Answers (2)
  1. 30 May, 00:19
    0
    Answer: 7

    Step-by-step explanation:

    21 = 3x

    21/3 = x

    7 = x
  2. 30 May, 01:14
    0
    x = 7

    3x/3=21/3

    x=7
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