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Math Help - Solving the system of equations

  1. #1
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    Solving the system of equations

    Ok this is the system:

    x1 + x2 + 2x3 - x4 = 4
    x1 + 3x2 - 3x3 - x4 = 1
    2x1 + 3x2 + 3x3 + x4 = 8
    3x3 - 7x3 + x4 = -4

    I need to solve it, and I am guessing its done by row operations, but I cant realy understand how its done.
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  2. #2
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    Quote Originally Posted by LooNiE View Post
    Ok this is the system:

    x1 + x2 + 2x3 - x4 = 4
    x1 + 3x2 - 3x3 - x4 = 1
    2x1 + 3x2 + 3x3 + x4 = 8
    3x3 - 7x3 + x4 = -4

    I need to solve it, and I am guessing its done by row operations, but I cant realy understand how its done.
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