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\begin{exerciseStatement}
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Find the solution to the given system of IVPs.
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\[ {x'} + {y} = {x} \hspace{2em}x(0)= 0 \]\[ 0 = -2 \, {y} - {y'} - 4 \, {x} \hspace{2em}x(0)= 5 \]
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\end{exerciseStatement}
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\begin{exerciseAnswer}
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\[x= -e^{\left(2 \, t\right)} + e^{\left(-3 \, t\right)} \]\[y= e^{\left(2 \, t\right)} + 4 \, e^{\left(-3 \, t\right)} \]
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\end{exerciseAnswer}
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