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Thread: Math Help Needed - Rewriting Formulas

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    Member Raazesk's Avatar
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    Default Math Help Needed - Rewriting Formulas

    I need to isolate the A.

    Here's the equation:
    D = P - FA

    The answer is:
    A = P - D
    _____F

    Here's what I did:
    D = P - FA

    D -P = -FA

    D - P = A
    _-F


    I don't know if I did it wrong, or if I'm supposed to somehow switch the D and P, and make the F a positive. . . I'm confused.

    Any help is greatly appreciate.
    This probably seems like an odd topic :P
    Thanks.

  2. #2
    Luminary Poster StompArtist's Avatar
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    Default

    D = P - FA

    D + FA = P - FA + FA

    D + FA = P

    D + FA - D = P - D

    FA = P - D

    FA / F = (P - D) / F

    A = (P - D) / F


    I think, haven't done those in a while...

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    Member Raazesk's Avatar
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    Default

    Perfect, thank you very much!

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    Luminary Poster StompArtist's Avatar
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    Quote Originally Posted by Raazesk View Post
    Perfect, thank you very much!
    Try and find a second opinion. It has been years...

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    Member Raazesk's Avatar
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    Default

    lol I will. Thanks again.

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    Forum Adept zuesmirza's Avatar
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    Default

    Here's what I did:
    D = P - FA

    D -P = -FA

    D - P = A
    _-F

    [/QUOTE]

    Now multiply by -1/-1
    Which is basically 1 so u get

    (D-P/-F)*(-1/-1)=A*1


    Equals

    -D+P/F=A

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    Senior Member Tvis's Avatar
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    Default

    Quote Originally Posted by StompArtist View Post
    D = P - FA

    D + FA = P - FA + FA

    D + FA = P

    D + FA - D = P - D

    FA = P - D

    FA / F = (P - D) / F

    A = (P - D) / F


    I think, haven't done those in a while...
    This is correct
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    O.O too much for freshman (me)

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