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That's right, it can't really be solved. For one thing, the two
equations aren't even independent:
A + B + C + D = 4X
A + B + D = 3X
Subtracting one from the other, we get C = X. Substituting that into
the first equation gives you the second equation, therefore the two
aren't independent.
Solving for D, then, we have
D = 3X - A - B
...which is the best that can be done.
-Alex
>From: "Jerry War" <drwar@xxxxxxxxx>
>Subject: Re: Math Majors
>Date: Sun, 8 Dec 2002 19:56:03 -0500
>
>Two equations and 5 unknowns. I am no math major but I would bet against.
>
>----- Original Message -----
>From: "phil" <zxcv@xxxxxxxxxxx>
>To: <omega-list@xxxxxxxxxx>
>Sent: Sunday, December 08, 2002 7:50 PM
>Subject: Math Majors
>
>
>> Any math majors out there that can solve the following simultaneous
>> equations for the variable D ??
>>
>> A + B + C + D = 4X
>>
>> A + B + D = 3X
>>
>> Thanks in advance.
>>
>> Phil
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