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Math Help - Solving for Indicated Variable [1 Problem]

  1. #1
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    Unhappy Solving for Indicated Variable [Desperate]

    I don't know how to solve this problem:

    Solve for r:

    S = L - rL

    Thank you and please show your work/explain steps.
    Last edited by zezima; August 22nd 2012 at 01:46 PM.
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  2. #2
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    Re: Solving for Indicated Variable [1 Problem]

    S = L - rL

    take L from both sides

    S -L= - rL

    divide -L from both sides

    \frac{S -L}{-L}= r

    and you are done.

    You may want to neaten the LHS

    \frac{L-S}{L}= r

    1-\frac{S}{L}= r
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