Предмет: Математика, автор: странныйкакос

Решите уравнение 21y-5(2y-7=19

Ответы

Автор ответа: гюйс

0

21у-5(2у-7)=19
21у-10у+14=19
11у=19-14
11у=5
у=5/11

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