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\begin{exerciseStatement}
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Find the solution to the given system of IVPs.
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\[ -{x'} = -{y} - 4 \, {x} \hspace{2em}x(0)= -2 \]\[ 7 \, {y} + 4 \, {x} = {y'} \hspace{2em}x(0)= -3 \]
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\end{exerciseStatement}
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\begin{exerciseAnswer}
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\[x= -e^{\left(8 \, t\right)} - e^{\left(3 \, t\right)} \]\[y= -4 \, e^{\left(8 \, t\right)} + e^{\left(3 \, t\right)} \]
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\end{exerciseAnswer}
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