5 - 4x + 3|x + 5| = 3 - (2x - 3) - 3x
5 - 4x + 3|x + 5| = 3 - 2x + 3 - 3x
5 - 4x + 3|x + 5| = 6 - 5x
3|x + 5| = 1 - x
1) x ≥ -5
3x + 15 = 1 - x
4x = 1 - 15
4x = -14
x = -14:4
x = -3,5
2) x ≤ -5
-3x - 15 = 1 - x
-2x = 1 + 15
-2x = 16
x = -8
Ответ: x = -8; -3,5.