1) Г

2) В

3) Б

[tex] - 8x + 23x - x = 23x - 9x = 14x = \\ 14 \times ( - \frac{3}{14} ) = - 3[/tex]

[tex]2(4 - x) - 3(x - 2) = \\ 8 - 2x - 3x + 6 = - 5x + 14 = \\ - 5 \times 2 \frac{2}{5} + 14 = - \frac{5 \times 12}{5} + 14 = \\ - 12 + 14 = 2[/tex]

[tex] \frac{3}{4} x \times ( - \frac{2}{17} ) = - \frac{3 \times 2}{4 \times 17} x = \\ - \frac{3}{34} x = - \frac{3}{34} \times ( - 34) = 3[/tex]