1. Selesaikan sistem persamaan linier di bawah ini
1. 2 x + y = 4
5 x – 2y = 1
2. 3x + y = 11
x–y= 5
3. –x + y + 2z = 0
3x + 4y + z = 0
2x + 5y + 3z = 0
4. 4x – y + 2z = 0
x + 2y – z = 0
3x + 5y + 5z = 0
5. x + y + z = -1
4y – 6z = 6
y+ z= 1
6. 7x – 4y – 2z = 0
16x + 2y + z = 0
7. 3x – 12y = 6
-7x + 28y = -14
5x – 20y = 10
8. 4x – y + 2z = 4
x + 2y – z = 3
3x + 5y + 5z = 5
9. w + x + y =3
-3 w – 17x + y + 2z = 1
4 w – 17x + 8y – 5z = 1
– 5x - 2y + z = 1
10. w – x + 3y + 3z = 3
-5 w + 2x – 5y + 4z = -5
-3 w – 4x + 7y – 2z = 7
2 w + 3x + y – 11z = 1
11. 2a – 8b = 12
3a – 6b = 9
– a + 2b = – 4
12. p – 5q – 4r – 7t = 0
2p + 10q – 7r + s – 7t = 0
r + s + 7t = 0
– 2p – 10q + 8r + s + 18t = 0
Sistem Persamaan Linier dan Matriks 1