What number when multiplied by four exceeds itself by 42?

Discussion in 'Calculator Requests' started by math_celebrity, Jan 27, 2017.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    What number when multiplied by four exceeds itself by 42?

    Let the number be n. We have:
    4n = n + 42

    Subtract n from each side:
    3n = 42

    Divide each side by 3
    n = 14
     

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