Question

Найдите корень уравнения
7-2x=37-7(x+3)
5-2x=11-7(x+2)

Answer 1

7-2х=37-7(х+3)
7-2х=37-7х-21
-2х+7х=37-21-7
5х=9
х=9:5
х=1.8

5-2х=11-7(х+2)
5-2х=11-7х-14
-2х+7х=11-14-5
5х=-8
х=-8:5
х=-1.6