This document contains 3 determinants with variables x, y, and z. The first determinant equals -144. The second determinant solves for x and equals -5/6. The third determinant solves for y and equals 3/4. The fourth determinant solves for z and equals 7/8.

1. DETERMINANTE PRINCIPAL
+ + +
3 5 2
+ - - + + + - -
3 1 2 = - 24 - 90 36 18 36 120 = 144
+ + +
9 6 8
DETERMINANTE PARA "X"
+ + +
3 5 2
- - - - + + +
D. x= 5 1 2 = - 24 - 40 60 + 8 36 200 = 120 = - 5/6
+ + +
4 6 8
DETERMINANTE PARA "Y"
+ + +
3 3 2
+ - - - + + + -
D. y= 3 5 2 = 120 - 54 24 90 24 - 72 = 108 = 3/4
+ + +
9 4 8
DETERMINANTE PARA"Z"
+ + +
3 5 3
+ - - - + + + -
D. z= 3 1 5 = - 12 225 54 27 90 - 60 = 126 = 7/8
+ + +
9 6 4