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23 December, 13:06

Luke has $21 more than rachel and $48 more than daniel. altogether they have $168. how much does luke have?

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  1. 23 December, 13:34
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    this can be solve by 3 variable equation

    let x be the money of luke

    y money of rachel

    z money of daniel

    first equation

    x = y + 21

    second equation

    x = z + 48

    third equation

    x + y + z = 168

    solving simultaneously

    x = 79

    y = 58

    z = 31
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