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Math Help - system of equations and arithmetic sequence?

  1. #1
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    Sep 2009
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    system of equations and arithmetic sequence?

    Consider the system of equations
    ax + by = c
    dx + ey = f
    where a, b, c is an arithmetic sequence and d,e,f is an arithmetic sequence. Given that ae =/= bd, show that the system has x = -1 and y =2 as its unique solution.

    I have no idea where to start. Does anyone know the solution?
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  2. #2
    Member
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    May 2009
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    New Delhi
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    153
    it is same as max09 ' question , this link will help you
    http://www.mathhelpforum.com/math-he...equations.html
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