Question

помогите решить уравнение

Answer 1

2/3*(7-2х)=1/2 |*6
4(7-2х)=3
7-2х=3/4
-2х=-7-3/4
2х=7+3/4
2х=

Answer 2

случайно

Answer 3

2х=31/4

Answer 4

х=31/8

Answer 5

х=3,875