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Math Help - Please verify

  1. #1
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    Please verify

    Please let me know if the following is true: 1/2 + 7/y = 2 + 1/y. I have Y=3?
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  2. #2
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    Quote Originally Posted by jay1 View Post
    Please let me know if the following is true: 1/2 + 7/y = 2 + 1/y. I have Y=3?
    \frac{1}{2} + \frac{7}{y} = 2 + \frac{1}{y}

    \frac{7}{y} - \frac{1}{y} = 2 - \frac{1}{2}

    \frac{6}{y} = \frac{3}{2}

    12 = 3y

    y = 4.


    So no, y \neq 3.
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  3. #3
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    Quote Originally Posted by jay1 View Post
    Please let me know if the following is true: 1/2 + 7/y = 2 + 1/y. I have Y=3?
    Well, checking the solution

    \frac{1}{2}+\frac{7}{3}=2+\frac{1}{3}


    \frac{3}{6}+\frac{14}{6}=\frac{6}{3}+\frac{1}{3}

    \frac{17}{6}\neq\frac{7}{3}

    Therefore y cannot be 3
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