Предмет: Математика, автор: ben34

Розв'яжіть рівняння (х - 2)/5 + (2х - 5)/4 + (4х - 1)/20 = 4 - х.

Ответы

Автор ответа: petrvodopian21

Ответ:

(х - 2)/5 + (2х - 5)/4 + (4х - 1)/20 = 4 - х

4(х-2)+5(2х-5)+(4х-1)=80-20х

4х-8+10х-25+4х-1=80-20х

38х=114

х=114/38

х=3

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