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10 March, 19:42

One number is 4 less than a second number. Twice the second number is 16 less than 5

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  1. 10 March, 22:40
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    The first number = 8

    The second number = 12

    Step-by-step explanation:

    let the given first number = x

    And the given second number = y

    Now, according to the question:

    x = y - 4

    2 y = 5x - 16

    Now substitute the value of x in (2)

    2 y = 5x - 16 ⇒ 2 y = 5 (y - 4) - 16

    or, 2y = 5 y - 20 - 16

    or, - 3 y = - 36

    ⇒ y = 36/3 = 12

    So, the second number y = 12

    and x = 12 - 4 = 12 - 4 = 8

    Hence, the first number = 8

    and the second number y = 12
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