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    tlmbmw05's Avatar
    tlmbmw05 Posts: 1, Reputation: 1
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    #1

    Mar 10, 2010, 06:24 PM
    solve using the elimination method
    solve using the elimination method and if the system is no solution or an infinite number x + 9y = 79 -7x + 9y = 23
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    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Mar 10, 2010, 10:24 PM

    Subtract the second equation from the first:

    Code:
      x + 9y = 79 
-7x + 9y = 23 -
 8x + 0  = 56
    Can you continue?
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