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Matematika
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1. Jawaban Arkan5283
2x + y - 3z = - 5
x - 3y + 2z = - 6
3x + 2y - z = 1
2x + y - 3z = - 5
y = - 5 - 2x + 3z
3x + 2y - z = 1
3x + 2(- 5 - 2x + 3z) - z = 1
3x - 10 - 4x + 6z - z = 1
- x + 5z = 1 + 10
- x + 5z = 11
x - 3y + 2z = - 6
x - 3(- 5 - 2x + 3z) + 2z = - 6
x + 15 + 6x - 9z + 2z = - 6
7x - 7z = - 6 - 15
7x - 7z = - 21
x - z = - 3
- x + 5z = 11
x - z = - 3
_________+
4z = 8
z = 2
x - z = - 3
x - 2 = - 3
x = - 3 + 2
x = - 1
y = - 5 - 2x + 3z
y = - 5 + 2 + 6
y = 3
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