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PolieSSa
@PolieSSa
July 2022
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Решите систему уравнений
х-6у=20
4х+2у=2
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rubilovalex
X=6y+20. подставляем во 2 уравнение: 4*(6y+20)+2y=2; 24y+80+2y=2; 24y+2y= 2-80; 26y= -78; y=(-78) /26= -3. x=6*(-3)+20= -18+20=2. Ответ: (2:-3).
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