Question

Решите уравнение (во вложении)

Answer 1

|2x - 5| = 2
2x - 5 = ± 2
2x - 5 = 2      2x = 2 + 5    2x = 7    x = 7/2 = 3 1/2

2x - 5 = -2    2x = -2 + 5    2x = 3      x = 3/2 = 1 1/2

Answer 2

2х₁-5=2
2х₁=5+2
х₁=7:2=3,5
2х₂-5=-2
2х₂=-2+5
х₂=3:2=1,5