Please forgive the rather simple nature of my question. I am rather confused about it. I have just started a class on differential equations and I am confused on the proper use of the constant C after integrating. There are occasions in which I end up with something like y = et + c. If this is the same as etec, then is ec essentially the same as c? Can anyone enlighten me as to the proper use of c in similar situations such as e6t + 6c, etc.?