Линейная алгебра. Локтионова Г.Н - 7 стр.

    x1 + 2 x2 + 3 x3 = 5,         4 x1 + 3 x2 − 9 x3 = 9,
                                  
10 3 x1 − 2 x2 + 3 x3 = −1,    19  x1 + 3 x2 − 5 x3 = 7,
    2 x + 3 x − 2 x = 8.           x + 8 x − 7 x = 12.
    1         2      3             1       2      3


    3 x1 − x2 + x3 = 4,           3 x1 + 2 x2 + x3 = 0,
                                  
11 2 x1 − 5 x2 − 3 x3 = −17,   20 2 x1 + 3 x2 + x3 = 2,
    x + x − x = 0.                 2 x + x + 3 x = 2.
        1     2     3              1       2     3


    x1 + x2 + x3 = 2,              x1 − 2 x2 + 3 x3 = −7,
                                  
12 2 x1 − x2 − 6 x3 = −1,      21 2 x1 + 3 x2 − 4 x3 = 17,
    3 x − 2 x = 8.                 3 x − 2 x − 5 x = 5.
         1      2                  1         2      3


    2 x1 − x2 − 3 x3 = 3,         4 x1 − 3 x2 + 2 x3 = −7,
                                  
13 3 x1 + 4 x2 − 5 x3 = −8,    22  2 x1 + 5 x2 − 3 x3 = 12,
    2 x + 7 x = 17.                5 x + 6 x − 2 x = 16.
          2      3                 1         2      3


    x1 + x2 + x3 = 6,              x1 + x2 + 2 x3 = 8,
                                  
14 2 x1 − x2 + x3 = 3,         23  2 x1 − x2 + 2 x3 = 6,
    x − x + 2 x = 5.              4 x + x + 4 x = 18.
    1     2     3                  1       2      3


    2 x1 + x2 − 3 x3 = 7,          2 x1 − x2 − x3 = 0,
                                  
15  x1 + 2 x2 + x3 = 4,        24 3 x1 + 4 x2 − 2 x3 = −5,
   3 x − x + 2 x = −1.            3 x − 2 x + 4 x = −5.
    1      2      3                1        2      3


    x1 + x2 + x3 = 2,             3 x1 + 4 x2 + 2 x3 = 24,
                                  
16 2 x1 + 3 x2 − 4 x3 = −4,    25  2 x1 − x2 − 3 x3 = 2,
    3 x + 2 x + 2 x = 7.           x + 5 x + x = 26.
    1         2      3             1        2    3


        3 x1 − x2 = 5,             x1 + x2 − x3 = −2,
                                  
17  − 2 x1 + x2 + x3 = 0,      26  8 x1 + 3 x2 − 6 x3 = 3,
   2 x − 2 x + 4 x = 15,           − 4 x − x + 3 x = −3 .
    1        2      3                   1    2      3


    2 x1 − x2 + x3 = 8,            x1 − 4 x2 − 2 x3 = 1,
                                  
18  x1 − 3 x2 − 5 x3 = 6,      27  3 x1 + x2 + x3 = −9,
   3 x + x − 7 x = −4.            − 3 x + 5 x + 6 x = 11,
    1      2      3                    1     2     3




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