\frac{dx_{1}}{dt} = \left(-1 \cdot k_{3} \cdot x_{1} / k_{4} \cdot k_{47} / k_{5} / \left(k_{6} / k_{4} + x_{1} / k_{4} + k_{47} / k_{5} + x_{1} \cdot k_{47} / \left(k_{4} \cdot k_{5}\right)\right) + 1 \cdot k_{7} \cdot k_{46} / \left(k_{8} + k_{46}\right) \cdot x_{4} / \left(k_{9} + x_{4}\right)\right) / k_{39}\\ \frac{dx_{2}}{dt} = \left(-1 \cdot \left(k_{45} \cdot k_{1} \cdot x_{2} - k_{2} \cdot x_{4}\right) + 1 \cdot k_{3} \cdot x_{1} / k_{4} \cdot k_{47} / k_{5} / \left(k_{6} / k_{4} + x_{1} / k_{4} + k_{47} / k_{5} + x_{1} \cdot k_{47} / \left(k_{4} \cdot k_{5}\right)\right) + 1 \cdot k_{10} \cdot x_{6} / \left(k_{11} + x_{6}\right) + -1 \cdot k_{12} \cdot k_{45} / \left(k_{13} + k_{45}\right) \cdot x_{2} / \left(k_{14} + x_{2}\right) + 1 \cdot k_{15} \cdot k_{44} / \left(k_{16} + k_{44}\right) \cdot x_{6} / \left(k_{17} + x_{6}\right) + 1 \cdot k_{18} \cdot k_{43} / \left(k_{19} + k_{43}\right) \cdot x_{6} / \left(k_{20} + x_{6}\right) + 1 \cdot k_{24} \cdot k_{46} / \left(k_{25} + k_{46}\right) \cdot x_{3} / \left(k_{26} + x_{3}\right) + -1 \cdot \left(k_{31} \cdot k_{40} / \left(k_{32} + k_{40}\right) \cdot x_{2} / \left(k_{33} + x_{2}\right) - k_{34} \cdot k_{41} / \left(k_{32} + k_{41}\right) \cdot x_{4} / \left(k_{33} + x_{4}\right)\right)\right) / k_{39}\\ \frac{dx_{3}}{dt} = \left(1 \cdot k_{21} \cdot k_{42} / \left(k_{22} + k_{42}\right) \cdot x_{4} / \left(k_{23} + x_{4}\right) + -1 \cdot k_{24} \cdot k_{46} / \left(k_{25} + k_{46}\right) \cdot x_{3} / \left(k_{26} + x_{3}\right)\right) / k_{39}\\ \frac{dx_{4}}{dt} = \left(1 \cdot \left(k_{45} \cdot k_{1} \cdot x_{2} - k_{2} \cdot x_{4}\right) + -1 \cdot k_{7} \cdot k_{46} / \left(k_{8} + k_{46}\right) \cdot x_{4} / \left(k_{9} + x_{4}\right) + -1 \cdot k_{21} \cdot k_{42} / \left(k_{22} + k_{42}\right) \cdot x_{4} / \left(k_{23} + x_{4}\right) + 1 \cdot \left(k_{31} \cdot k_{40} / \left(k_{32} + k_{40}\right) \cdot x_{2} / \left(k_{33} + x_{2}\right) - k_{34} \cdot k_{41} / \left(k_{32} + k_{41}\right) \cdot x_{4} / \left(k_{33} + x_{4}\right)\right) + -1 \cdot \left(k_{35} \cdot x_{4} / \left(k_{36} + x_{4}\right) - k_{37} \cdot x_{5} / \left(k_{38} + x_{5}\right)\right)\right) / k_{39}\\ \frac{dx_{5}}{dt} = \left(-1 \cdot \left(k_{27} \cdot x_{5} / \left(k_{28} + x_{5}\right) - k_{29} \cdot x_{6} / \left(k_{30} + x_{6}\right)\right) + 1 \cdot \left(k_{35} \cdot x_{4} / \left(k_{36} + x_{4}\right) - k_{37} \cdot x_{5} / \left(k_{38} + x_{5}\right)\right)\right) / k_{39}\\ \frac{dx_{6}}{dt} = \left(-1 \cdot k_{10} \cdot x_{6} / \left(k_{11} + x_{6}\right) + 1 \cdot k_{12} \cdot k_{45} / \left(k_{13} + k_{45}\right) \cdot x_{2} / \left(k_{14} + x_{2}\right) + -1 \cdot k_{15} \cdot k_{44} / \left(k_{16} + k_{44}\right) \cdot x_{6} / \left(k_{17} + x_{6}\right) + -1 \cdot k_{18} \cdot k_{43} / \left(k_{19} + k_{43}\right) \cdot x_{6} / \left(k_{20} + x_{6}\right) + 1 \cdot \left(k_{27} \cdot x_{5} / \left(k_{28} + x_{5}\right) - k_{29} \cdot x_{6} / \left(k_{30} + x_{6}\right)\right)\right) / k_{39}\\ \frac{dx_{7}}{dt} = 0\\ \frac{dx_{8}}{dt} = 0\\ \frac{dx_{9}}{dt} = 0\\ \frac{dx_{10}}{dt} = 0\\ \frac{dx_{11}}{dt} = 0\\ \frac{dx_{12}}{dt} = 0\\ \frac{dx_{13}}{dt} = 0\\ \frac{dx_{14}}{dt} = 0