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10 November, 16:29

The sum of three numbers is 84. The second number is twice the first, and the third is 4 more than the second. Find the numbers.

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  1. 10 November, 20:17
    0
    16, 32, 36

    Step-by-step explanation:

    If you set up an equation using x as the first number you can solve for x then follow the directions.

    For example ...

    1st number is x

    2nd number is 2x

    Third number is 2x+4

    Put it all in an equation to solve for x:

    x + (2x) + (2x+4) = 84

    Combine like terms, then solve.

    5x + 4 = 84

    Subtract four from both sides

    5x = 80

    Divide both sides by 5

    x = 16

    Now just plug x into the expressions that were created for each number, and you have your answers.

    Let me know if you need further explanation.
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