Devin tried to find the derivative of $-3x-11$ using basic differentiation rules. Here is his work: $\begin{align} &&&\phantom{=}\dfrac{d}{dx}(-3x-11) \\\\ \text{Step 1} &&&=\dfrac{d}{dx}(-3x)-\dfrac{d}{dx}(11) \\\\ \text{Step 2} &&&=\dfrac{d}{dx}(-3x)-0 \\\\ \text{Step 3} &&&=-3\dfrac{d}{dx}(x) \\\\ \text{Step 4} &&&=-3\cdot 1 \\\\ \text{Step 5} &&&=-3 \end{align}$ **At which step did Devin make a mistake, if at all?** [[☃ radio 1]]