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    sully6's Avatar
    sully6 Posts: 1, Reputation: 1
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    #1

    Apr 12, 2011, 06:14 PM
    y=3x
    x+y=4500

    y=3x
    x+y=4500

    y=3x
    x+y=4500 solve by elimination

    ModEDIT: Threads merged.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #2

    Apr 12, 2011, 06:16 PM

    Yes.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Apr 13, 2011, 09:29 AM

    1. Make sure the variables are on the same side of the equation.
    2. Add or subtract one equation from the other to eliminate one variable while keeping the other.
    3. Solve this one variable equation.
    4. Use this value to get the value of the other variable.
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