3x - 4(x + 1) < -8 + 5x
3x - 4x - 4 < -8 + 5x-x - 4 < -8 + 5x-x - 4x < -8 + 5x + 4-5x < -4 + 5x-5x - 5x < -4-10x < -4x > -4/-10x > 0.4
Ответ: x > 0.4
3x - 4(x + 1) < -8 + 5x
3x - 4x - 4 < -8 + 5x
-x - 4 < -8 + 5x
-x - 4x < -8 + 5x + 4
-5x < -4 + 5x
-5x - 5x < -4
-10x < -4
x > -4/-10
x > 0.4
Ответ: x > 0.4