# Question #f9382

Jul 6, 2017

Hmm... are you sure there isn't a typo?

#### Explanation:

I've tried several ways to solve this for $c$ and with no success. When I plugged this into Wolfram Alpha, it gave me the following solution for $c$, which I doubt is what you were looking for:

Heh... there's no way any of us could've done that by hand...