Предмет: Алгебра, автор: каразюка

решите уравнения 7,5-2х=5х-6,5

Ответы

Автор ответа: Kikyy

7,5 - 2х = 5х - 6,5
7,5 + 6,5 = 5х+2х
14 = 7х
х = 2

Автор ответа: olkaneb

-2х-5х = -6,5-7,5

-7х = -14

х = -14 : (-7)

х = 2

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