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11 January, 11:05

Twice the sum of a number and 4 is equal to 9

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  1. 11 January, 11:26
    0
    2x (4+n) = 9

    8 + 2n = 9

    2n = 9-8

    2n = 1

    n = 0.5
  2. 11 January, 12:21
    0
    It could be 2.5+2.5=5 and then add that to 4 and that equals 9
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