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Math Help - Can someone check over these linear systems?

  1. #1
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    Can someone check over these linear systems?

    Feeling that I slipped up somewhere on these, just want to make sure I came up with the correct answers or not...

    x + 2y = - 2
    -3x + y = -1
    My answer: (0, -1)

    2x - 3y = -7
    3x + 3y = 27
    My answer: (5, 4)

    y = -4x + 4
    y = -1x - 5
    My answer: (3, 8)
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  2. #2
    Master Of Puppets
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    the first and last are correct. The solution to the middle one is (4,5).
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  3. #3
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    Ah! I made a silly mathematical error. Thanks!
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