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

    Feb 8, 2010, 02:33 PM
    how to solve algebra by elimination
    3x+4y=-6 and 5x+3y=1
    ROLCAM's Avatar
    ROLCAM Posts: 1,420, Reputation: 23
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    #2

    Feb 8, 2010, 04:31 PM

    3x+4y=-6
    5x+3y=1

    15x+20y = -30
    15x+9y = 3

    -15x-20y =30
    15x+9y = 3

    eliminate the xs.
    -11y = 33
    so y = - 3

    5x+3y=1
    5x-9 =1
    5x = 1+9
    5x = 10
    x = 2
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