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22 January, 12:57

Three numbers have a sum of 68. The second number is 1 less than twice the first. The third number is three times the second. What are the three numbers?

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  1. 22 January, 13:54
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    First number: 71/7

    Second number: 135/7

    Third number: 270/7

    Step-by-step explanation:

    First number = x

    Second number = 2x-1

    Third number = 2 (2x-1)

    x + (2x-1) + 2 (2x-1) = 68

    3x-1+4x-2=68

    7x-3=68

    7x=71

    x=71/7

    You can check by plugging in the x into the equation.
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