x_{3} = \operatorname{piecewise}(\frac{1}{100} \cdot \sin\left(\frac{1571}{1000000} \cdot \left(-500 + t\right)\right), \operatorname{and}\left(t > 500, t < \frac{250254614894971}{100000000000}\right), 0)\\
2 \cdot k_{2} \cdot x_{1} + 2 \cdot k_{2} \cdot x_{2} + 4 \cdot k_{2} \cdot x_{4} + 4 \cdot k_{1} \cdot x_{5} + 2 \cdot k_{1} \cdot x_{6} + 2 \cdot k_{1} \cdot x_{7} = k_{1} \cdot k_{19} + k_{2} \cdot k_{18}