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17 March, 18:55

7/12 - ? + 3/4 = 2/3

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Answers (2)
  1. 17 March, 19:17
    0
    x = 2/3

    Step-by-step explanation:

    7/12 - x + 3/4 = 2/3

    The common denominator is 12

    3/4 * 3/3 = 9/12

    2/3 * 4/4 = 8/12

    7/12 - x + 9/12 = 8/12

    Combine like terms

    16/12 - x = 8/12

    Subtract 16/12 from each side

    12/16 - 16/12 - x = 8/12-16/12

    -x = - 8/12

    Multiply by - 1

    -1 * (-x) = - 1 * (-8/12)

    x = 8/12

    Divide the top and bottom by 4

    x = 2/3
  2. 17 March, 19:20
    0
    7/12 - ? + 3/4 = 2/3

    7/12 + 3/4 = ? + 2/3

    7/12 + 3/4 - 2/3 = ?

    ? = 7/12 + 3/4 - 2/3

    ? = 7/12 + 9/12 - 8/12

    ? = 8/12 = 4/6 = 2/3
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