2x + 3y + z = 1 X + 2y + 3z = 5 3x + y + 2z = 6 Tentukan x , y , z

2x + 3y + z = 1. x1
x + 2y + 3z = 5. x2
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2x + 3y + z = 1
2x + 4y + 6z = 10
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-y - 5z = -9
y + 5z = 9

x + 2y + 3z = 5. x3
3x + y + 2z =6. x1
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3x + 6y + 9z = 15
3x + y + 2z = 6
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5y + 7z = 9

y + 5z = 9. x5
5y + 7z = 9. x1
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5y + 25z = 45
5y + 7z = 9
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18z = 36
z = 2

y + 5z = y + 10 = 9
y = -1

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

x = 1, y = -1, z = 2