Use Cramer's Rule to solve the system

Question

x + 4y -3z = -8

3x - y + 3z = 12

x + y + 6z = 1

 

det A=? det Ax=? det Ay=? det Az=?

Answer 1

Dx = -243

Dy = 216

Dz = -9

D = -81

x = -243/-81 = 3

y = 216/-81 = -8/3

z = -9/-81 = 1/9