ответ:ето
Пошаговое объяснение:
Примеры
Система линейных уравнений с двумя неизвестными
x + y = 5
2x - 3y = 1
Система линейных ур-ний с тремя неизвестными
2*x = 2
5*y = 10
x + y + z = 3
Система дробно-рациональных уравнений
x + y = 3
1/x + 1/y = 2/5
Система четырёх уравнений
x1 + 2x2 + 3x3 - 2x4 = 1
2x1 - x2 - 2x3 - 3x4 = 2
3x1 + 2x2 - x3 + 2x4 = -5
2x1 - 3x2 + 2x3 + x4 = 11
Система линейных уравнений с четырьмя неизвестными
2x + 4y + 6z + 8v = 100
3x + 5y + 7z + 9v = 116
3x - 5y + 7z - 9v = -40
-2x + 4y - 6z + 8v = 36
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39 это правильный отпер серьёзно