## Help with this Reducible DFQ?

Wrong section, sorry! First time user.
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 $ydx = - (1 + e^x)dy$ then $\frac{dx}{-(1 + e^x)} = \frac{dy}{y}$ This is separable, right? Or you are required to use a substitution?
 Sorry, I left out a y in the parenthesis. Reread the problem now... that's why substitution was required.

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## Help with this Reducible DFQ?

is this the same as http://www.physicsforums.com/showthread.php?t=610993 ?