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    bethie12's Avatar
    bethie12 Posts: 1, Reputation: 1
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    #1

    Jan 27, 2011, 04:58 PM
    solving linear systems by combination
    x+y=5
    x-y=7
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jan 27, 2011, 10:36 PM

    Combination? It's the first time I hear about this 'method' I guess it's the same as elimination...

    Add the two equations together. What do you get? :)

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