x_{8} = \frac{134}{5} \cdot \frac{67957}{25000}^{\left(-\frac{9}{50}\right) \cdot t}\\
x_{50} = k_{225} - \left(x_{13} + x_{14} + k_{208} + k_{209} + x_{18} + x_{19} + k_{210} + k_{211} + x_{23} + x_{24} + k_{212} + k_{213} + x_{28} + x_{29} + k_{214} + k_{215} + x_{33} + x_{34} + k_{216} + k_{217} + x_{38} + x_{39} + k_{218} + x_{41} + x_{43} + x_{44} + k_{219} + x_{46} + x_{47}\right)