5x - 1.5(2x + 3) < 4x + 1.55x - 3x - 4.5 < 4x + 1.52x - 4.5 < 4x + 1.52x - 4.5 - 2x < 4x - 2x + 1.5-4.5 < 2x + 1.5-4.5 - 1.5 < 2x-6 < 2x-3 < x
Ответ: x > -3.
5x - 1.5(2x + 3) < 4x + 1.5
5x - 3x - 4.5 < 4x + 1.5
2x - 4.5 < 4x + 1.5
2x - 4.5 - 2x < 4x - 2x + 1.5
-4.5 < 2x + 1.5
-4.5 - 1.5 < 2x
-6 < 2x
-3 < x
Ответ: x > -3.