Find the general solution of the differential equations:`(dy)/(dx)+3y=e^(-2x)`

Explanation

To solve the differential equation \(\frac{dy}{dx} + 3y = e^{-2x}\), we can follow these steps:

### Step 1: Identify the standard form
The given equation is already in the standard linear form:
\[ \frac{dy}{dx} + P(x)y = Q(x) \]
where \(P(x) = 3\) and \(Q(x) = e^{-2x}\).
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