Задания №5

1.

x1 + x2 + x3 = 4

9.

2x1 + 2x2 +10x3 =14

2x1 +3x2 + x3 =9

10x1 + x2 + x3 =12

x1 − x2 − x3 = −2

2x1 +10x2 + x3 =13

2. 4x1 − x2 + x3 = 4

10.

x1 − x2 + x3 − x4 = −2

x1 +6x2 + 2x3 =9

2x1 + x2 −5x3 + x4 = 2

−x1 −2x2 +5x3 = 2

8x1 − x2 − x3 + 2x4 =11

x1 +6x2 −2x3 −2x4 = −7

3.

10x1 −7x2 = 7

11.

5x1 + x3 =11

−3x1 + 2x2 + 6x3 = 4

x1 +3x2 − x3 = 4

5x1 − x2 +5x3 = 6

−3x1 + 2x2 +10x3 = 6

4.

4x1 − x2 + x3 = 4

12.

2x1 − x3 = −3

2x1 +6x2 − x3 = 7

−x1 +3x2 + x3 = 2

x1 + 2x2 −3x3 = 0

x1 − x2 + 4x3 =3

5.

5x1 + x3 =11

13.

2x1 − x3 =1

2x1 +6x2 − 2x3 =8

x1 −3x2 + x3 = 2

−3x1 + 2x2 +10x3 = 6

x1 + x2 +3x3 = 4

6.

2x1 + x2 + 4x3 =16

14.

5x1 + x2 − x3 = −5

3x1 + 2x2 + x3 =10

−x1 +3x2 + x3 =5

x1 +3x2 +3x3 =16

x1 −2x2 + 4x3 =1

7.

−3x1 + 2,099x2 + 6x3 =3,901

15.

4,5x1 −1,8x2 +3,6x3 = −1,7

10x1 −7x2 = 7

3,1x1 + 2,3x2 −1,2x3 =3,6

5x1 − x2 +5x3 = 6

1,8x1 + 2,5x2 + 4,6x3 = 2,2

8.

3x1 − x2 =5

16.

−8x1 +5x2 +8x3 −6x4 = −144

−2x1 + x2 + x3 = 0

2x1 +7x2 −8x3 − x4 = 25

2x1 − x2 + 4x3 =15

−5x1 −4x2 + x3 −62x4 = −21

5x1 −9x2 − 2x3 +8x4 =103

17.

−6x1 −8x2 −2x3 −8x4 = −32

22.

−x1 −8x2 +5x4 = −60

9x1 +8x2 + x4 =8

−6x1 −6x2 + 2x3 + 4x4 = −10

−9x2 −5x3 +9x4 = −2

9x1 −5x2 −6x3 + 4x4 = 65

−x1 + 4x2 −8x3 − 4x4 = −36

−5x1 −9x3 + x4 =18

18.

2x1 −7x2 +8x3 − 4x4 = −57

23.

−5x1 + 2x2 + 4x3 −4x4 =57

−x2 + 4x3 − x4 = 24

4x1 +9x2 −7x3 −5x4 = −23

3x1 −4x2 + 2x3 − x4 = 28

−5x2 +6x3 + 7x4 = 23

−9x1 + x2 − 4x3 + 6x4 =12

4x1 +8x2 −6x3 −6x4 = −20

19.

−5x1 −6x2 + 4x3 − 2x4 = 64

24.

9x1 −7x2 − x3 + x4 =55

3x2 −4x3 −6x4 = −55

2x1 +7x2 +3x3 −6x4 = −66

2x1 + 4x2 −4x3 + 2x4 = −48

4x1 +7x2 −3x3 −7x4 = −43

x1 −8x2 + 2x3 +8x4 = 68

−9x1 −5x2 − x3 −6x4 = −24

20.

7x1 +8x2 + 4x3 −6x4 = −126

25.

8x1 +8x2 −5x3 −8x4 =13

−x1 +6x2 −2x3 −6x4 = −42

8x1 −5x2 +9x3 −8x4 =38

2x1 +9x2 +6x3 −4x4 = −115

5x1 −4x2 −6x3 − 2x4 =14

5x1 +9x2 + x3 + x4 = −67

8x1 +3x2 +6x3 +6x4 = −95