Предмет: Математика, автор: Динка200411

Решите уравнение: 32,5/2х-5=13/0,4

Ответы

Автор ответа: ГульшатА09

0

это простая пропорция
13(2x-5)=13
2x-5=1
2x=5
x=2,5

Автор ответа: Динка200411

0

А разве не крестиком решается?

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