\frac{dx_{1}}{dt} = 0\\ \frac{dx_{2}}{dt} = \left(-1 \cdot k_{2} \cdot x_{2} \cdot k_{29} / \left(k_{28} + x_{2}\right) + 1 \cdot k_{3} \cdot x_{3} \cdot k_{31} / \left(k_{30} + x_{3}\right) + 1 \cdot k_{2} \cdot \left(x_{4} \cdot k_{36} \cdot k_{71} - k_{37} \cdot x_{2}\right) + -1 \cdot k_{2} \cdot x_{2} \cdot k_{46} + -1 \cdot k_{2} \cdot x_{2} \cdot k_{66} / \left(x_{2} + k_{67}\right)\right) / k_{2}\\ \frac{dx_{3}}{dt} = \left(1 \cdot k_{2} \cdot x_{2} \cdot k_{29} / \left(k_{28} + x_{2}\right) + -1 \cdot k_{3} \cdot x_{3} \cdot k_{31} / \left(k_{30} + x_{3}\right) + -1 \cdot k_{3} \cdot x_{3} \cdot k_{48} + -1 \cdot k_{3} \cdot x_{3} \cdot k_{68} / \left(x_{3} + k_{69}\right)\right) / k_{3}\\ \frac{dx_{4}}{dt} = \left(-1 \cdot k_{2} \cdot \left(x_{4} \cdot k_{36} \cdot k_{71} - k_{37} \cdot x_{2}\right) + 1 \cdot k_{2} \cdot x_{5} \cdot k_{41} + -1 \cdot k_{2} \cdot x_{4} \cdot k_{47} + -1 \cdot k_{2} \cdot x_{4} \cdot k_{64} / \left(x_{4} + k_{65}\right)\right) / k_{2}\\ \frac{dx_{5}}{dt} = \left(1 \cdot k_{2} \cdot \left(k_{23} + \left(k_{22} + x_{9} / k_{21}^{k_{20}}\right) \cdot k_{25} / \left(1 + k_{22} + x_{9} / k_{21}^{k_{20}} + x_{3} / k_{24}^{k_{26}}\right)\right) + -1 \cdot k_{1} \cdot x_{5} \cdot k_{27} + -1 \cdot k_{2} \cdot x_{5} \cdot k_{62} / \left(x_{5} + k_{63}\right)\right) / k_{2}\\ \frac{dx_{6}}{dt} = \left(-1 \cdot k_{2} \cdot \left(x_{6} \cdot x_{10} \cdot k_{38} - k_{39} \cdot x_{8}\right) + 1 \cdot k_{2} \cdot k_{42} \cdot x_{7} + -1 \cdot k_{1} \cdot k_{43} \cdot x_{6} + -1 \cdot k_{2} \cdot k_{52} \cdot k_{72} \cdot x_{6} / \left(k_{53} + x_{6}\right)\right) / k_{2}\\ \frac{dx_{7}}{dt} = \left(1 \cdot k_{2} \cdot \left(k_{7} + \left(k_{6} + x_{3} / k_{5}^{k_{4}}\right) \cdot k_{9} / \left(1 + k_{6} + x_{3} / k_{5}^{k_{4}} + x_{9} / k_{8}^{k_{10}}\right)\right) + -1 \cdot k_{2} \cdot k_{11} \cdot x_{7} + -1 \cdot k_{2} \cdot k_{50} \cdot x_{7} / \left(k_{51} + x_{7}\right)\right) / k_{2}\\ \frac{dx_{8}}{dt} = \left(1 \cdot k_{3} \cdot x_{9} \cdot k_{33} / \left(k_{32} + x_{9}\right) + -1 \cdot k_{2} \cdot x_{8} \cdot k_{35} / \left(k_{34} + x_{8}\right) + 1 \cdot k_{2} \cdot \left(x_{6} \cdot x_{10} \cdot k_{38} - k_{39} \cdot x_{8}\right) + -1 \cdot k_{2} \cdot k_{44} \cdot x_{8} + -1 \cdot k_{2} \cdot k_{58} \cdot x_{8} / \left(k_{59} + x_{8}\right)\right) / k_{2}\\ \frac{dx_{9}}{dt} = \left(-1 \cdot k_{3} \cdot x_{9} \cdot k_{33} / \left(k_{32} + x_{9}\right) + 1 \cdot k_{2} \cdot x_{8} \cdot k_{35} / \left(k_{34} + x_{8}\right) + -1 \cdot k_{3} \cdot k_{45} \cdot x_{9} + -1 \cdot k_{3} \cdot k_{60} \cdot x_{9} / \left(k_{61} + x_{9}\right)\right) / k_{3}\\ \frac{dx_{10}}{dt} = \left(-1 \cdot k_{2} \cdot \left(x_{6} \cdot x_{10} \cdot k_{38} - k_{39} \cdot x_{8}\right) + 1 \cdot k_{2} \cdot k_{40} \cdot x_{11} + -1 \cdot k_{2} \cdot k_{49} \cdot x_{10} + -1 \cdot k_{2} \cdot k_{56} \cdot x_{10} / \left(k_{57} + x_{10}\right)\right) / k_{2}\\ \frac{dx_{11}}{dt} = \left(1 \cdot k_{2} \cdot \left(k_{15} + \left(k_{14} + x_{3} / k_{13}^{k_{12}}\right) \cdot k_{17} / \left(1 + k_{14} + x_{3} / k_{13}^{k_{12}} + x_{9} / k_{16}^{k_{18}}\right)\right) + -1 \cdot k_{1} \cdot k_{19} \cdot x_{11} + -1 \cdot k_{2} \cdot k_{54} \cdot x_{11} / \left(k_{55} + x_{11}\right)\right) / k_{2}\\ \frac{dx_{12}}{dt} = 0\\ \frac{dx_{13}}{dt} = 0