Which expression is the general solution for dydx=−y\frac{dy}{dx} = -ydxdy=−y?
y=Cexy = Ce^xy=Cex
y=Ce−xy = Ce^{-x}y=Ce−x
y=e−x+Cy = e^{-x} + Cy=e−x+C
y=−x+Cy = -x + Cy=−x+C