Предмет: Математика, автор: kontzova2015

решите пожалуйста уравнение
1,7х + 21 + 3,1х = 57

Ответы

Автор ответа: nurik2010

1

1,7х + 21 + 3,1х = 57
1,7x+3.1x=57-21
4.8x=36
x=36/4.8
x=7.5
ответ : 7,5

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