[tex]x = (((15 \frac{2}{3} \times ( - 3) ^{2} ) \div ( - 1) ^{3} ) + 7 \frac{3}{8} ) \\ x = ((( \frac{47}{3} \times 9) \div ( - 1)) + \frac{59}{8} \\ x = - 141 + \frac{59}{8} \\ x = \frac{( - 141) \times 8 + 59}{8} \\ x = \frac{ - 1128 + 59}{8} \\ x = - \frac{1069}{8 } \\ x = - 133.625[/tex]