Question

Помогите пожалуйтса!
а) 2х - 3 (х-1) = 4 + 2 (х - 1)
б) х/3 + х + 1/ 4 = 2

Answer 1

а) 2х - 3 (х-1) = 4 + 2 (х - 1)
2х - 3х +3 = 4 + 2х - 2
- х + 3 = 2 + 2х
-х - 2х = 2 - 3
- 3х = - 1
х = 1/3
б) х/3 + х + 1/ 4 = 2
х/3+х = 2 - 1/4
4х/3 = 7/4
4х = (7*3)/4
х = 21