Question

4|2x - 3| = 28 помогите добрые люди :3​

Answer 1

|x| =  x,   x ≥ 0

    = -x , x < 0

4|2x - 3| = 28

|2x - 3| = 7

1. 2x - 3 = 7

2x = 10

x = 5

2. 2x - 3 = -7

2x = -4

x = -2

ответ x = {-2, 5}