Математика. Картечина Н.В - 19 стр.

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МичГАУ | Мичуринск

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19
66.5x
1
-2x
2
+3x
3
-4x
4
-x
5
=0
x
1
+4x
2
-3x
3
+2x
4
-5x
5
=0
6x
1
+2x
2
-2x
4
-6x
5
=0
67.12x
1
-x
2
+7x
3
+11x
4
-x
5
=0
24x
1
-2x
2
+14x
3
+22x
4
-2x
5
=0
x
1
+x
2
+x
3
-x
4
+x
5
=0
68.x
1
+2x
2
+x
3
+4x
4
+x
5
=0
2x
1
-x
2
+3x
3
+x
4
-5x
5
=0
x
1
+3x
2
-x
3
-6x
4
-x
5
=0
69.2x
1
-x
2
+3x
3
-x
4
-x
5
=0
x
1
+5x
2
-x
3
+x
4
+2x
5
=0
x
1
+16x
2
-6x
3
+4x
4
+7x
5
=0
70.3/2x
1
+5/4x
2
+5/7x
3
+x
4
=0
3/5x
1
+1/2x
2
+2/7x
3
+2/5x
4
=0
1/5x
1
+1/6x
2
+2/21x
3
+2/15x
4
=0
71. 8x
1
+x
2
+x
3
-x
4
+2x
5
=0
3x
1
-3x
2
-2x
3
+x
4
-3x
5
=0
5 x
1
+4x
2
+3x
3
-2x
4
+5x
5
=0
72. x
1
+3x
2
-x
3
+12x
4
-x
5
=0
2x
1
-2x
2
+x
3
-10x
4
+x
5
=0
3x
1
+x
2
+x
3
+2x
4
=0
73. 7x
1
-14x
2
+3x
3
-x
4
+x
5
=0
x
1
-2x
2
+x
3
-3x
4
+7x
5
=0
5x
1
-10x
2
+x
3
+5x
4
-13x
5
=0
74. x
1
+2x
2
+3x
3
+x
4
-x
5
=0
2x
1
-2x
2
-5x
3
-3x
4
+x
5
=0
3x
1
-2x
2
+3x
3
+2x
4
-x
5
=0
75. x
1
+x
2
+x
3
-x
4
-x
5
=0
2x
1
+x
2
-2x
3
-x
4
-2x
5
=0
x
1
+2x
2
+5x
3
-2x
4
-x
5
=0
76. 2x
1
+x
2
-3x
3
+x
4
-x
5
=0
3x
1
-x
2
+2x
3
-x
4
+2x
5
=0
x
1
-2x
2
+5x
3
-2x
4
+3x
5
=0
77. x
1
+2x
2
-3x
3
+10x
4
-x
5
=0
x
1
-2x
2
+3x
3
-10x
4
+x
5
=0
x
1
+6x
2
-9x
3
+30x
4
-3x
5
=0
78. 2x
1
+x
2
-x
3
+7x
4
+5x
5
=0
x
1
-2x
2
+3x
3
-5x
4
-7x
5
=0
3x
1
-x
2
+2x
3
+2x
4
-2x
5
=0
79. 2x
1
-x
2
-3x
3
-7x
4
+2x
5
=0
x
1
+11x
2
-12x
3
+34x
4
-5x
5
=0
x
1
-5x
2
+2x
3
-16x
4
+3x
5
=0
80. 3x
1
+x
2
-8x
3
+2x
4
+x
5
=0
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                66.5x1 -2x2 +3x3 -4x4-x5=0
                  x1 +4x2 -3x3 +2x4-5x5=0
                  6x1 +2x2 -2x4-6x5=0
                 67.12x1 -x2 +7x3 +11x4-x5=0
                  24x1 -2x2 +14x3 +22x4-2x5=0
                  x1 +x2 +x3 -x4+x5=0
                68.x1 +2x2 +x3 +4x4+x5=0
                  2x1 -x2 +3x3 +x4-5x5=0
                  x1 +3x2 -x3 -6x4-x5=0
                69.2x1 -x2 +3x3 -x4-x5=0
                  x1 +5x2 -x3 +x4+2x5=0
                  x1 +16x2 -6x3 +4x4+7x5=0
                70.3/2x1 +5/4x2 +5/7x3 +x4=0
                   3/5x1 +1/2x2 +2/7x3 +2/5x4=0
                   1/5x1 +1/6x2 +2/21x3 +2/15x4=0
                71. 8x1 +x2 +x3 -x4+2x5=0
                    3x1 -3x2 -2x3 +x4-3x5=0
                    5 x1 +4x2 +3x3 -2x4+5x5=0
                72. x1 +3x2 -x3 +12x4-x5=0
                    2x1 -2x2 +x3 -10x4+x5=0
                    3x1 +x2 +x3 +2x4=0
                73. 7x1 -14x2 +3x3 -x4+x5=0
                    x1 -2x2 +x3 -3x4+7x5=0
                    5x1 -10x2 +x3 +5x4-13x5=0
                74. x1 +2x2 +3x3 +x4-x5=0
                     2x1 -2x2 -5x3 -3x4+x5=0
                     3x1 -2x2 +3x3 +2x4-x5=0
                75. x1 +x2 +x3 -x4-x5=0
                     2x1 +x2 -2x3 -x4-2x5=0
                    x1 +2x2 +5x3 -2x4-x5=0
                76. 2x1 +x2 -3x3 +x4-x5=0
                     3x1 -x2 +2x3 -x4+2x5=0
                     x1 -2x2 +5x3 -2x4+3x5=0
                77. x1 +2x2 -3x3 +10x4-x5=0
                     x1 -2x2 +3x3 -10x4+x5=0
                     x1 +6x2 -9x3 +30x4-3x5=0
                78. 2x1 +x2 -x3 +7x4+5x5=0
                    x1 -2x2 +3x3 -5x4-7x5=0
                    3x1 -x2 +2x3 +2x4-2x5=0
                79. 2x1 -x2 -3x3 -7x4+2x5=0
                     x1 +11x2 -12x3 +34x4-5x5=0
                     x1 -5x2 +2x3 -16x4+3x5=0
                80. 3x1 +x2 -8x3 +2x4+x5=0


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