\frac{dx_{2}}{dt} = \left(-1 \cdot k_{13} \cdot \left(k_{14} \cdot x_{1} \cdot x_{2} - k_{15} \cdot x_{11}\right) + 1 \cdot k_{13} \cdot k_{10} \cdot k_{26} + -1 \cdot k_{13} \cdot k_{10} \cdot x_{2}\right) / k_{13}\\ \frac{dx_{3}}{dt} = \left(-1 \cdot k_{13} \cdot \left(k_{16} \cdot x_{3} \cdot x_{5} - k_{17} \cdot x_{4}\right) + 1 \cdot k_{13} \cdot k_{18} \cdot x_{4} + -1 \cdot k_{13} \cdot k_{19} \cdot x_{3} + 1 \cdot k_{13} \cdot k_{25} \cdot x_{11}\right) / k_{13}\\ \frac{dx_{4}}{dt} = \left(1 \cdot k_{13} \cdot \left(k_{16} \cdot x_{3} \cdot x_{5} - k_{17} \cdot x_{4}\right) + -1 \cdot k_{13} \cdot k_{18} \cdot x_{4}\right) / k_{13}\\ \frac{dx_{5}}{dt} = \left(-1 \cdot k_{13} \cdot \left(k_{16} \cdot x_{3} \cdot x_{5} - k_{17} \cdot x_{4}\right) + 1 \cdot k_{13} \cdot k_{23} \cdot x_{6}\right) / k_{13}\\ \frac{dx_{6}}{dt} = \left(1 \cdot k_{13} \cdot k_{18} \cdot x_{4} + -1 \cdot k_{13} \cdot \left(k_{20} \cdot x_{6} \cdot x_{7} - k_{21} \cdot x_{8}\right) + 1 \cdot k_{13} \cdot k_{22} \cdot x_{8} + -1 \cdot k_{13} \cdot k_{23} \cdot x_{6}\right) / k_{13}\\ \frac{dx_{7}}{dt} = \left(-1 \cdot k_{13} \cdot \left(k_{20} \cdot x_{6} \cdot x_{7} - k_{21} \cdot x_{8}\right) + 1 \cdot k_{13} \cdot k_{24} \cdot x_{9}\right) / k_{13}\\ \frac{dx_{8}}{dt} = \left(1 \cdot k_{13} \cdot \left(k_{20} \cdot x_{6} \cdot x_{7} - k_{21} \cdot x_{8}\right) + -1 \cdot k_{13} \cdot k_{22} \cdot x_{8}\right) / k_{13}\\ \frac{dx_{9}}{dt} = \left(1 \cdot k_{13} \cdot k_{22} \cdot x_{8} + -1 \cdot k_{13} \cdot k_{24} \cdot x_{9}\right) / k_{13}\\ \frac{dx_{10}}{dt} = 0\\ \frac{dx_{11}}{dt} = \left(1 \cdot k_{13} \cdot \left(k_{14} \cdot x_{1} \cdot x_{2} - k_{15} \cdot x_{11}\right) + -1 \cdot k_{13} \cdot k_{25} \cdot x_{11}\right) / k_{13}