Question

Решите уравнение :
2x - 1 = 3
2x - 1 = - 3

Answer 1

2x - 1 = 3
2х=4
х=2

2x - 1 = - 3
2х=-2
х=-1

Answer 2

2х-1=3
2х=3+1
2х=4
х=4:2
х=2

2х-1=-3
2х=-3+1
2х=-2
х=-2:2
х=-1