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Math Help - Linear Equation using Gaussian Elimination or Gauss-Jordan Elimination

  1. #1
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    Linear Equation using Gaussian Elimination or Gauss-Jordan Elimination

    Problem 1:
    x + 2y - z = -2
    x + z = 0
    2x - y - z = -3

    Problem 2:
    2x - 3y - z = 13
    -x + 2y - 5z = 6
    5x - y - z = 49

    The answer to problem 3 (that I got) is: x = -1, y = 0, z = 1

    Is this correct?

    For problem 4, do I use Gaussian elimination or Gauss-Jordan elimination?

    Thanks in advance!
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  2. #2
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    Quote Originally Posted by play60 View Post
    Problem 1:
    x + 2y - z = -2
    x + z = 0
    2x - y - z = -3

    Problem 2:
    2x - 3y - z = 13
    -x + 2y - 5z = 6
    5x - y - z = 49

    The answer to problem 3 (that I got) is: x = -1, y = 0, z = 1

    Is this correct?

    For problem 4, do I use Gaussian elimination or Gauss-Jordan elimination?

    Thanks in advance!
    Your solution for 1 works. By problem 4, do you mean number 2?

    Use Gauss-Jordan.
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