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Mathematics, 06.05.2021 17:00 juvie65

Решите систему уравнений способом подстановки и способом сложения: {15х + y = 23
{x — Зу = 23​

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Решите систему уравнений способом подстановки и способом сложения: {15х + y = 23
{x — Зу = 2...
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