\frac{dx_{1}}{dt} = \left(-1 \cdot k_{1} \cdot k_{2} \cdot k_{15} \cdot x_{1} + 1 \cdot k_{1} \cdot k_{8} \cdot x_{17} + 1 \cdot k_{1} \cdot k_{10}\right) / k_{1}\\ \frac{dx_{2}}{dt} = 0\\ \frac{dx_{3}}{dt} = \left(1 \cdot k_{1} \cdot k_{2} \cdot k_{15} \cdot x_{1} + -1 \cdot k_{1} \cdot k_{3} \cdot x_{5} \cdot x_{3}\right) / k_{1}\\ \frac{dx_{4}}{dt} = 0\\ \frac{dx_{5}}{dt} = \left(-1 \cdot k_{1} \cdot k_{3} \cdot x_{5} \cdot x_{3} + 1 \cdot k_{1} \cdot k_{8} \cdot x_{17} + 1 \cdot k_{1} \cdot k_{9}\right) / k_{1}\\ \frac{dx_{6}}{dt} = 0\\ \frac{dx_{7}}{dt} = \left(1 \cdot k_{1} \cdot k_{3} \cdot x_{5} \cdot x_{3} + -1 \cdot k_{1} \cdot k_{4} \cdot k_{18} \cdot k_{15} \cdot x_{7}\right) / k_{1}\\ \frac{dx_{8}}{dt} = 0\\ \frac{dx_{9}}{dt} = 0\\ \frac{dx_{10}}{dt} = 0\\ \frac{dx_{11}}{dt} = \left(1 \cdot k_{1} \cdot k_{4} \cdot k_{18} \cdot k_{15} \cdot x_{7} + -1 \cdot k_{1} \cdot k_{7} \cdot x_{11} \cdot k_{24}\right) / k_{1}\\ \frac{dx_{12}}{dt} = 0\\ \frac{dx_{13}}{dt} = 0\\ \frac{dx_{14}}{dt} = 0\\ \frac{dx_{15}}{dt} = 0\\ \frac{dx_{16}}{dt} = \left(-1 \cdot k_{1} \cdot \left(k_{5} \cdot x_{16} \cdot k_{21} - k_{6} \cdot x_{17} \cdot k_{22}\right) + 1 \cdot k_{1} \cdot k_{7} \cdot x_{11} \cdot k_{24} + -1 \cdot k_{1} \cdot k_{12} \cdot x_{16} / \left(k_{11} + x_{16}\right)\right) / k_{1}\\ \frac{dx_{17}}{dt} = \left(1 \cdot k_{1} \cdot \left(k_{5} \cdot x_{16} \cdot k_{21} - k_{6} \cdot x_{17} \cdot k_{22}\right) + -1 \cdot k_{1} \cdot k_{8} \cdot x_{17} + -1 \cdot k_{1} \cdot k_{14} \cdot x_{17} / \left(k_{13} + x_{17}\right)\right) / k_{1}