Решение:

[tex]4(x - 1) - 3(2x + 1) = - 8 \\ 4 \times x - 4 \times 1 - 3 \times 2x - 3 \times 1 = - 8 \\ 4x - 4 - 6x - 3 + 8 = 0 \\ - 2x + 1 = 0 \\ - 2x = - 1 \\ x = \frac{ - 1}{ - 2} = \frac{1}{2} = 0.5[/tex]

Ответ: 0.5