2x+y+2z=2 3x-2y-z=6 2x-y-z=3 Tolong Bantu saya

Materi : SPLTV
Kelas : X SMA

2x + y + 2z = 2
3x - 2y - z = 6
2x - y - z = 3


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

3x - 2y - z = 6 ...... ×2
2x - y - z = 3 ........ ×3
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6x - 4y - 2z = 12
6y - 3y - 3z = 9
◆◆◆◆◆◆◆◆◆◆◆◆◆◆[-]
-y + z = 3

2y + 3z = -1 ..... ×1
-y + z = 3 .......... ×2
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2y + 3z = -1
-2y + 2z = 6
◆◆◆◆◆◆◆◆◆◆◆◆◆[+]
5z = 5
z = 1

-y + z = 3
-y + 1 = 3
-y = 3 - 1
-y = 2
y = -2

2x - y - z = 3
2x - (-2) - 1 = 3
2x + 2 - 1 = 3
2x + 1 = 3
2x = 2
x = 1

Hp = { 1 , -2 , 1 }