From the first equation, we get:
49z - z = 38448z = 384z = 8
From the second equation, we get:
102k - 4k = 196098k = 1960k = 20
Therefore, z = 8 and k = 20.
From the first equation, we get:
49z - z = 384
48z = 384
z = 8
From the second equation, we get:
102k - 4k = 1960
98k = 1960
k = 20
Therefore, z = 8 and k = 20.