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Thread: How would you go about solving simultaneously?

  1. #1
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    How would you go about solving simultaneously?



    So we know that
    and that

    Now solve those simultaneously
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  2. #2
    Super Member flyingsquirrel's Avatar
    Joined
    Apr 2008
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    802
    Hello

    $\displaystyle
    \begin{cases}
    85=C\exp(3b) & (1)\\
    13=C\exp(5b) & (2)
    \end{cases}$

    As $\displaystyle \exp(5b)\neq 0$, one can divide (1) by (2) which will give an equation that can be solved for $\displaystyle b$. Then use either (1) or (2) to find the value of $\displaystyle C$.
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