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\newcommand{\Bold}[1]{\mathbf{#1}}\left[x\left(t\right) = -\frac{1}{35} \, {\left(\sqrt{105} \sinh\left(\frac{1}{2} \, \sqrt{105} t\right) - 35 \, \cosh\left(\frac{1}{2} \, \sqrt{105} t\right)\right)} e^{\left(\frac{1}{2} \, t\right)}, y\left(t\right) = \frac{1}{7} \, {\left(\sqrt{105} \sinh\left(\frac{1}{2} \, \sqrt{105} t\right) - 7 \, \cosh\left(\frac{1}{2} \, \sqrt{105} t\right)\right)} e^{\left(\frac{1}{2} \, t\right)}\right]
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\newcommand{\Bold}[1]{\mathbf{#1}}-\frac{1}{791} \, {\left(143 \, \sqrt{7} - 56\right)} e^{\left(-{\left(\sqrt{7} + 2\right)} x\right)} + \frac{1}{791} \, {\left(143 \, \sqrt{7} + 56\right)} e^{\left({\left(\sqrt{7} - 2\right)} x\right)} - \frac{14}{113} \, \sin\left(2 \, x\right) - \frac{16}{113} \, \cos\left(2 \, x\right)