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Bailey1
@Bailey1
July 2022
1
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решите систему уравнений способом подстановки:знак системы 2(х-2у)=х-8у ниже 5(х+у)=2(х-у)+10
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flyacker
Из первого уравнения: x = -4y
Подставляем во второе: -15y = -10y + 10
y = -2 x = 8
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Подставляем во второе: -15y = -10y + 10
y = -2 x = 8