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Math Help - need help with system of equations

  1. #1
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    need help with system of equations

    I do not understand how to do this problem:

    4e=5+2f

    6f=9-4e

    Could someone please explain to me how to solve this problem?
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  2. #2
    MHF Contributor harish21's Avatar
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    Quote Originally Posted by mrking View Post
    I do not understand how to do this problem:

    4e=5+2f

    6f=9-4e

    Could someone please explain to me how to solve this problem?

    4e=5+2f \implies 4e-2f=5

    6f = 9-4e \implies 4e+6f=9

    so you have these two equations with two unknowns. You can easily find e and f

    OR,

    4e=5+2f and

    6f = 9-4e. therefore, 4e = 9 -6f

    so you can write

    5+2f = 9-6f.

    This will give you the value of f, after which you can find out e.
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  3. #3
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    oh ok thanks
    Last edited by mrking; April 21st 2010 at 06:01 PM. Reason: didnt see later post
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