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March 27, 2017

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A second number is three times a first number. A third number is 15 more than the first number. If the sum of the three numbers is 330, find the numbers.

  • Algebra Its Urgent! - ,

    Let the numbers be a, b, c
    b = 3a
    c = 15+a
    a+b+c=330

    Substitute for b and c in and solve the sum for a.
    Use a to determine b and c.

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