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dominika080108
@dominika080108
July 2022
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{5x+7y=-3,8x-y=-17 решить систему
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ProstoResheba
Ответ:Відповідь: (2; -1).Пошаговое объяснение:{5x +7y = 3,/ *(-8) / {-40x - 56y = -24 1) - 61y = 61; y = -1; {8х - у = 17; / *5 / {40x - 5y = 85 2) 40х - 5 * (-1) = 85; 40х = 80; х = 80/40; х = 2.Відповідь: (2; -1).
2 votes
Thanks 1
dominika080108
мне нужно с решением((
ProstoResheba
ок
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