Tolong jawab yg C sama D

c) dik dr matriks:
→ 2x - 1 = 3
2x = 4
x = 2

→ 2 - 3y = -1
-3y = -3
y = 1

d)dik dr matriks:
→ 3 - 2x = 1
-2x = -2
x = 1

→ 3y + 4 = 10
3y = 6
y = 2

→ 3 = 2z - 1
4 = 2z
2 = z