Question 702981
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  3      2     -2     15
  2     -2      3     -3
  4     -1      3      3

Swap: Row 1 and 2, and then 2 and 3.

  2     -2      3     -3
  4     -1      3      3
  3      2     -2     15

R1/2 to R1

  1     -1    3/2   -3/2
  4     -1      3      3
  3      2     -2     15

-4R1 + R2 to R2

  1     -1    3/2   -3/2
  0      3     -3      9
  3      2     -2     15

R2/4 to R2

  1     -1    3/2   -3/2
  0      1     -1      3
  3      2     -2     15

-3R1 + R3 to R3

  1     -1    3/2   -3/2
  0      1     -1      3
  0      5  -13/2   39/2
 
-5R2 + R3 to R3

  1     -1    3/2   -3/2
  0      1     -1      3
  0      0     -5     15

R3/-5 to R3

  1     -1    3/2   -3/2
  0      1     -1      3
  0      0      1     -3

R3 + R2 to R2

  1     -1    3/2   -3/2
  0      1      0      0
  0      0      1     -3

R2 + R1 to R1

  1      0    3/2   -3/2
  0      1      0      0
  0      0      1     -3

-3/2*R3 + R1 to R1

  1      0      0      3
  0      1      0      0
  0      0      1     -3

x = 3, y = 0, z = -3
</pre>
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
<font face="Math1" size="+2">Egw to Beta kai to Sigma</font>
My calculator said it, I believe it, that settles it
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