| 1. |
-9x + 1y = 130
-5x - 4y = 54
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| 2. |
-2x - 3y + 8z = 43
-5x - 7y + 3z = -8
-4x - 1y + 6z = 51
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| 3. |
-9x + 8y + 2z = -63
3x - 6y - 8z = 115
-4x - 9y - 7z = 109
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| 4. |
-5x + 2y = -47
-5x - 2y = -23
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| 5. |
-6x + 3y + 8z = -117
4x - 7y - 1z = 110
-3x + 6y - 7z = -66
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| 6. |
-1x - 5y = -51
9x - 2y = -152
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| 7. |
1x + 3y = -24
-6x + 5y = 29
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| 8. |
2x + 9y - 7z = -49
-6x - 1y + 4z = -3
-9x + 3y + 7z = -62
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| 9. |
-5x - 2y + 8z = -44
7x - 1y - 8z = 34
4x - 3y + 2z = -48
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| 10. |
9x - 6y = 15
-6x - 8y = 110
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| 11. |
2x - 1y - 4z = 45
7x - 5y + 3z = 46
-2x + 3y - 6z = 15
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| 12. |
9x - 1y = -120
-8x + 7y = 70
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| 13. |
5x - 9y + 4z = -137
-6x + 7y - 8z = 159
-2x - 1y - 3z = 26
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| 14. |
-1x - 8y = 0
5x + 4y = 36
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| 15. |
3x - 9y = 126
6x - 2y = 76
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| 16. |
3x - 1y - 9z = 64
5x - 4y - 7z = 43
6x - 2y + 8z = -132
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| 17. |
6x - 5y = 95
-4x - 2y = -26
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| 18. |
9x + 3y - 8z = -136
-5x - 8y + 3z = 138
4x - 7y - 1z = 44
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