Предмет: Математика, автор: 2dima275

решите уравнение 3,7а+15+4,1а=89,1

Ответы

Автор ответа: Грет85
0
3,7а+15+4,1а=89,1
7,8а=89,1-15
7,8а=74,1
а=74,1/7,8
а=9,5

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