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    bigballa413's Avatar
    bigballa413 Posts: 1, Reputation: 1
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    #1

    Jul 23, 2008, 09:56 AM
    solving using elimination
    I need the answer for x+y=2 2x-y=4
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
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    #2

    Jul 23, 2008, 10:27 AM
    If this is for a homework assignment, I need to know why you are having a problem.
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    donf Posts: 5,679, Reputation: 582
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    #3

    Jul 23, 2008, 10:35 AM
    Sorry, my link went down while I answering this.

    First, evaluate each equation to find the simplest value for "x".

    Next, in the second equation, replace the value of x from the first evaluation into the "x" place in the second equation. Now solve for "y".

    Once you have a value for "y", replace the "y" with the correct value and then solve for "x"
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #4

    Jul 24, 2008, 02:30 AM
    Well, he's asking for ELIMINATION METHOD to solve that.

    Simply 'add' both equations into each other.
    So,

    Can you simplify? All should "fall into place", like galactus often says.
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