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Thread: Rational Expression

  1. March 9th 2008, 01:29 PM #1
    currypuff
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    Rational Expression

    Please help me solve this:

    \frac {5}{x+3} - \frac{3}{2x+6} = \frac{1}{x}

    Your assistance is much appreciated.
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  2. March 9th 2008, 03:57 PM #2
    wingless
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    \frac {5}{x+3} - \frac{3}{2x+6} = \frac{1}{x}

    \frac{2}{2}\cdot\frac {5}{x+3} - \frac{3}{2x+6} = \frac{1}{x}

    \frac {10}{2x+6} - \frac{3}{2x+6} = \frac{1}{x}

    \frac {7}{2x+6} = \frac{1}{x}

    (7)(x) = (1)(2x+6)

    7x = 2x + 6

    5x = 6

    x=\frac{6}{5}
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