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1. Hey I got stuck on this questions and I was wondering if anyone could give me any clues in what I'm doing wrong?
I have tried to use substitution to integrate but it doesn't seem to work

The question is find the general solution of this equation:

dy/dx= (e^x+3)/ (e^x)

I have a picture of my workings out, the answer at the back of the textbook is y=x-(3e^-x)+c but I can't to get to this
Thank you!
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2. (e^x+3)/ (e^x) = 1 + 3e^(-x)
3. I didn't see that, but I get it now! Thank you!

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Updated: April 4, 2013
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