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29 June, 05:28

Solve the equation 3x - 1 = 20

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Answers (2)
  1. 29 June, 06:03
    0
    Although the answer from Cindie17 is correct you can also do this:

    3x-1=20, subtract 1 from both sides and get 3x=21, then divide both sides by 3 so 3x/3 = x and 21/3=7

    thus, x=7
  2. 29 June, 08:52
    0
    3x-1=20

    3*7=21-1=20

    The answer would be x=7
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