Electric field and q

[AwayFromReality]

I must be missing something fairly simple here but Electric Field has two equations:

Equation 1: E=kq/r^2
Equation 2: E=F/q.

If we use the first equation the relationship between electric field and q is directly proportional. But if we use the second equation, electric field is inversely proportional to q. Can anyone explain this? I think the q used is different for the two equations but I'm not sure how.

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[AwayFromReality]

Thank you, that makes a lot of sense.
So if some arbitrary charge is placed inside of a preexisting electric field we use equation 2. But if the question involves only a charge that is producing the electric field then equation 1 is used.