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carlj0nes

  • one year ago

Gaussian Elimination. Please see attached.

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  1. carlj0nes
    • one year ago
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    I am struggling with this and I believe my answer for y and z are correct but I need to solve for x and check this by putting that back into the equation. This is what I am unsure what to do and any help would be much appreciated.

  2. Loser66
    • one year ago
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    y is wrong

  3. Loser66
    • one year ago
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    22y -2z = -27

  4. Loser66
    • one year ago
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    \( y = \dfrac{-27 +2z}{22}\) , replace \(z = \dfrac{5}{4}\) you will get the correct answer for y , then for x

  5. carlj0nes
    • one year ago
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    that = -1.113636

  6. Loser66
    • one year ago
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    One more thing, you should label how to get the last matrix. I know you use \(2R_1+R_3\), but if you don't state it out, the credit may be took off.

  7. Loser66
    • one year ago
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    Ok, but should let it as fraction -49/44 , and plug to the first equation to get x

  8. Loser66
    • one year ago
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    x-4y +z= 5 x = 5 +4y-z dat sit.

  9. carlj0nes
    • one year ago
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    thank you

  10. Loser66
    • one year ago
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    np

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