tent. nilai x y z dari kesamaan dua matriks berikut

*x-1 = 2
x = 2+1
x = 3
*2y = x + 3
2y = 3+3
2y = 6
y = 3
*6z+y = 5
6z = 5-y
6z = 2
z= 2/6 atau 1/3