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  1. 08-21-2013, 08:53 PM Top | #1
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    1 x=2 , x=6 , y=3

    2 (3 - , 2 )
    3x-4y+7=0

    3 (0 ,4 )
    x+2y+2=0


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  3. 08-22-2013, 02:05 PM Top | #2
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  5. 08-22-2013, 04:56 PM Top | #3
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  6. 08-22-2013, 05:26 PM Top | #4
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  8. 08-22-2013, 09:34 PM Top | #5
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    http://


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  10. 08-22-2013, 11:22 PM Top | #6
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  11. 08-23-2013, 10:40 AM Top | #7
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  12. 08-23-2013, 10:45 AM Top | #8
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  13. 08-23-2013, 11:02 AM Top | #9
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  14. 08-25-2013, 07:58 AM Top | #10
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  15. 08-25-2013, 11:41 PM Top | #11
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    a,c b



  16. 08-25-2013, 11:48 PM Top | #12
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    8 (3,1-) x2+y2+5x=1 , x2+y2+y=-7


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