4. Реши уравнения: 1) \(3,25x - 4\frac{5}{7} = 3\frac{5}{12}x - 3\frac{3}{14}\) 2) \(23 - 4(3x + 8) = 1 - 17x\); 3) \(\frac{3x - 2}{5} = \frac{2x - 1}{3}\)

1) Решим уравнение (3,25x - 4\frac{5}{7} = 3\frac{5}{12}x - 3\frac{3}{14}\) (3,25x - 4\frac{5}{7} = 3\frac{5}{12}x - 3\frac{3}{14}\) (3,25x - \frac{33}{7} = \frac{41}{12}x - \frac{45}{14}\) (3,25x - \frac{41}{12}x = \frac{33}{7} - \frac{45}{14}\) (\frac{13}{4}x - \frac{41}{12}x = \frac{66}{14} - \frac{45}{14}\) (\frac{39 - 41}{12}x = \frac{21}{14}\) \[-\frac{2}{12}x = \frac{3}{2}\] \[-\frac{1}{6}x = \frac{3}{2}\] \[x = -\frac{3}{2} \cdot 6\] \[x = -9\] Ответ: (-9) 2) Решим уравнение (23 - 4(3x + 8) = 1 - 17x) (23 - 4(3x + 8) = 1 - 17x) (23 - 12x - 32 = 1 - 17x) (-12x - 9 = 1 - 17x) (-12x + 17x = 1 + 9) (5x = 10) (x = 2) Ответ: (2) 3) Решим уравнение \(\frac{3x - 2}{5} = \frac{2x - 1}{3}\) \(\frac{3x - 2}{5} = \frac{2x - 1}{3}\) (3(3x - 2) = 5(2x - 1)) (9x - 6 = 10x - 5) (9x - 10x = 6 - 5) (-x = 1) (x = -1) Ответ: (-1)