Предмет: Математика, автор: dashalow

Решите уравнение полным ответом:(1.2-2х+7.4х+3.8)*4.2=355,53
Ответы : а)14.753 в)275.59
б)14.75 г)другой ответ

Ответы

Автор ответа: mgrita
1
(5+5,4x)*4,2=355,53
5+5,4x=355,53:4,2
5+5,4x=84,65
5,4x=84,65-5
5,4x=79,65
X=14,75
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