Основы математического моделирования. Кудинов Ю.А - 29 стр.

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16. -4x
1
+2x
2
+x
3
=1
-1x
1
+5x
2
+x
3
=1
2x
1
+0x
2
+3x
3
=3
17. 5x
1
-x
2
-x
3
=-3
-x
1
+3x
2
+x
3
=-1
2x
1
-x
2
+4x
3
=1
18. 4x
1
+2x
2
+x
3
=3
3x
1
+5x
2
-x
3
=4
2x
1
+x
2
-4x
3
=6
19. 4x
1
+x
2
+2x
3
=-6
0x
1
+3x
2
+x
3
=-1
x
1
+2x
2
+4x
3
=-5
20. 3x
1
+x
2
+x
3
=6
0x
1
-2x
2
+x
3
=-3
2x
1
-x
2
+4x
3
=-1
21. 2x
1
-x
2
+0x
3
=-5
0x
1
-2x
2
+x
3
=-3
2x
1
-x
2
+4x
3
=-1
22. 2x
1
-x
2
+0x
3
=-5
2x
1
+5x
2
+x
3
=2
2x
1
+x
2
-x
3
=-7
23. x
1
+0x
2
-x
3
=0
-x
1
-x
2
+x
3
=1
4x
1
+x
2
+x
3
=4
24. 2x
1
+x
2
+x
3
=3
-5x
1
+x
2
-x
3
= -9
-2x
1
+x
2
-2x
3
= -2
25. 2x
1
-x
2
+x
3
=4
5x
1
+0x
2
+x
3
=11
1x
1
-x
2
+x
3
=2
26. x
1
+0x
2
-x
3
= -2
-x
1
+x
2
+x
3
=2
4x
1
+x
2
-x
3
=-5
29
16. -4x1+2x2+x3=1
 -1x1+5x2+x3=1
 2x1+0x2+3x3=3

 17. 5x1-x2-x3=-3
  -x1+3x2+x3=-1
   2x1-x2+4x3=1

18. 4x1+2x2+x3=3
  3x1+5x2-x3=4
  2x1+x2-4x3=6

19. 4x1+x2+2x3=-6
 0x1+3x2+x3=-1
 x1+2x2+4x3=-5

20. 3x1+x2+x3=6
 0x1-2x2+x3=-3
 2x1-x2+4x3=-1

21. 2x1-x2+0x3=-5
 0x1-2x2+x3=-3
 2x1-x2+4x3=-1


22. 2x1-x2+0x3=-5
  2x1+5x2+x3=2
  2x1+x2-x3=-7

 23. x1+0x2-x3=0
   -x1-x2+x3=1
  4x1+x2+x3=4

24. 2x1+x2+x3=3
 -5x1+x2-x3= -9
-2x1+x2-2x3= -2

 25. 2x1-x2+x3=4
 5x1+0x2+x3=11
  1x1-x2+x3=2

26. x1+0x2-x3= -2
  -x1+x2+x3=2
  4x1+x2-x3=-5

                    29

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