tentuakan spltv dari 2x-y+2z=-1. 3x+2y-z=10. -4x-y-3z=-3

2x - y + 2z = - 1
3x + 2y - z = 10
- 4x - y - 3z = - 3

2x - y + 2z = - 1
- y = - 1 - 2x - 2z
y = 2x + 2z + 1

3x + 2y - z = 10
3x + 2(2x + 2z + 1) - z = 10
3x + 4x + 4z + 2 - z = 10
7x + 3z = 10 - 2
7x + 3z = 8

- 4x - y - 3z = - 3
- 4x - 2x - 2z - 1 - 3z = - 3
- 6x - 5z = - 3 + 1
- 6x - 5z = - 2

7x + 3z = 8|× 5
- 6x - 5z = - 2|× 3

35x + 15z = 40
- 18x - 15z = - 6
___________+
17x = 34
x = 2

7x + 3z = 8
14 + 3z = 8
3z = 8 - 14
3z = - 6
z = - 2

y = 2x + 2z + 1
y = 4 - 4 + 1
y = 1

Maaf Kalau Salah