when , , X sub 0 = 1/2,

I set it up like this:

Okay, so it looks like my restrictions are that it has to be greater than 0 for M and C. But I don't know how to deal with that in an inequality. Does that mean that I simply put C on both sides without one being a negative and a positive?

Combine terms:

What do I do here? I want X by itself? So.

Stuck.