Easy# System of Differential Equations - 4y(t)

DIFFEQ-NNAJLY

The unknown function $x(t)$ in the system of differential equation:

$$\begin{align}x\prime(t)&=4y(t) \\\ \\\ y\prime(t)&=-x(t)+y(t) \end{align}$$

...satisfies the second order differential equation: