Question 429957
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b>
Hi
-5x - 4y + 12z = -140
9x - 8y + z = -649
3x - 2y + 6z = -290

*[invoke cramers_rule_3x3 -5,-4,12,-140,9,-8,1,-649,3,-2,6,-290]