Ответ:Решение:\( \frac{5}{8}x + \frac{8}{8}x - \frac{6}{8}x = \frac{7}{4} \)\( \frac{5+8-6}{8}x = \frac{7}{4} \)\( \frac{7}{8}x = \frac{7}{4} \)\( x = \frac{7}{4} \cdot \frac{8}{7} \)\( x = 2 \)Ответ: \( x = 2 \).