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31 March, 13:06

3x - 4 + 20 = 55 What is the answer to this problem

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Answers (2)
  1. 31 March, 14:50
    0
    The answer should be x=13.
  2. 31 March, 16:27
    0
    3x - 4 + 20 = 55

    3x + 16 = 55

    3x + 16 - 16 = 55 - 16

    3x = 39

    3x/3 = 39/3

    X = 13.
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