|2x+4,4|-3=|2x+1,4|
нули модулей x = -2.2 x = -0.7
раскрытие модулей
|2x+4,4| |2x+1,4|
x < -2.2 -(2x + 4.4) -(2x + 1.4)
-2.2 <=x <= -0.7 (2x + 4.4) -(2x + 1.4)
x > -0.7 (2x + 4.4) (2x + 1.4)
1. x < -2.2
-(2x + 4.4) - 3 = -(2x + 1.4)
-2x - 4.4 - 3 = -2x - 1.4
-7,4 = -1.4
x ∈ ∅
2. -2.2 <=x < -0.7
(2x + 4.4) - 3 = -(2x + 1.4)
2x + 1.4 = -2x - 1.4
4x = -2.8
x = -0.7
3. x > -0.7
(2x + 4.4) - 3 = (2x + 1.4)
2x + 1.4 = 2x + 1.4
0 = 0
x > -0.7
ответ x ∈ [-0.7, +∞)
У самого такая задача )