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Math Help - Problem fraction equation

  1. #1
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    Problem fraction equation

    Hi all, here is my question:
    x = x+1 -1
    3 2

    I cannot figure it out at all so if anyone can help me with the solution not just the final answer would be appreciated.
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  2. #2
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    Re: Problem fraction equation

    The number 2 should be under the x+1
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  3. #3
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    e^(i*pi)'s Avatar
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    Re: Problem fraction equation

    Quote Originally Posted by nicchofaigh View Post
    Hi all, here is my question:
    x = x+1 -1
    3 2

    I cannot figure it out at all so if anyone can help me with the solution not just the final answer would be appreciated.
    Use brackets, it makes you work infinity easier to read. Better yet, use LaTeX

    If, as I assume, the question is \dfrac{x}{3} =\dfrac{x+1}{2} - 1 then multiply through by the LCD of 1, 2 and 3.
    Last edited by e^(i*pi); October 4th 2011 at 12:17 PM. Reason: typo
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  4. #4
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    Re: Problem fraction equation

    Thanks very much for your help. The answer I got was x=-4 is this correct.
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  5. #5
    MHF Contributor Siron's Avatar
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    Re: Problem fraction equation

    We can check it, multiply all the terms with a factor 6 (LCM of 1,2 and 3) therefore we get:
    2x=3(x+1)-6
    \Leftrightarrow 2x=3x+3-6
    \Leftrightarrow -x=-3 \Leftrightarrow x=3

    So recheck your calculations.
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  6. #6
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    Re: Problem fraction equation

    Thank you very much Siron for your help.
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  7. #7
    MHF Contributor Siron's Avatar
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    Re: Problem fraction equation

    You're welcome!
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