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Автор - sdmitrieva1967

как решить уравнения 4y+2y-y=20

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Автор - Jlёshка
4у+2у-у=20; 20:5=4!...

Ответ

Автор - Brava99
думаю так
4у+2у-у=20
5y=20
y=5
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