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## #1 2006-08-23 06:13:52

Devantè
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### Systems of Linear Applications in Three Variables

Exercises on the Systems of Linear Applications in Three Variables

Doing these is good practice for your exams, and what kind of things you will expect. Give these a try.

Solve each system of equations.

1. 3x - 9y + 7z = -21
-4x + 5y - 2z = 5
-11x + y + 12z = -53

2. -2x - 8y - 7z = 87
x + 9y - 6z = -2
-10x + 4y - 5z = 5

3. -11x + 3y + 12z = 61
-12x - 11y + 8z = 195
-10x - 6y - 2z = 134

4. 3x + 4y + 9z = -51
-y - 5z = 24
-11x - 7y - 12z = 55

5. 10x + 3y - z = -55
3x - 6y - 6z = 36
-6x + 2y - 9z = 106

6. 4y + 11z = 85
-3x + 6y - 3z = 3
-8x - 9y - 12z = -70

7. 5x + 5y - z = -360
7x - 3y - 11z = 48
4x - 10y + 5z = 100

8. -8x + 6y - 2z = 554
4x - 3y - 5z = -115
x - 8y - 7z = -178

9. 4x + 4y - 5z = -479
-6x + 4y - 5z = 21
-11x - 2y - 3z = 431

10. 12x - 10y + z = 705
-9x - 7y - 2z = 75
x - 10y + 5z = 663

11. -6x + 5y - 6z = 258
x + y + z = -65
12x - 9y - 8z = 432

12. -4x - 3y + 6z = -108
-11x + 12y - 7z = -458
-x + 8y - 11z = -52

13. 4x - 9y - 3z = -311
-6x - 5y + 2z = 161
-10x - z = 264

14. -11x - 7y - 4z = 48
-9x + 10y - 5z = 795
8x + 2y - 12z = 518

15. -6x - 6y - 12z = 72
11x + y - 4z = -108
-9x + 10y + 2z = -408

16. -5x + 8y + 3z = 122
7x - 2y - 12z = -783
-8x - 9y - 10z = 15

17. 11x - 6y - 3z = -274
4x - 5y + 7z = 145
-4x + 6y - 4z = -132

18. -x + 6y + z = -15
-2y - 4z = -68
-5x - 5y + 4z = 253

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Last edited by Devanté (2006-08-23 06:24:59)

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