I'm not sure if you have started studying yet, but this is a pretty basic question and the first pages in the Notes will touch a bit on that. Furthermore, any introductory accounting text will discuss this in great detail.
Basically debt is the stuff that the company OWES to others, while equity is the stuff that it OWNS. I can't think of a simpler way to put it.
There are a few accounts that are common place and you'll get more comfortable with those as you go along. For example, you know that Accounts Payable, Deferred Taxes, ST debt are things the company owes to others, i.e. it's a liability. While Common and Preferred Stock, Additional Paid-in-Capital, Retained Earnings is something the company owns.
In the case of Deferred taxes, you know that this is the difference between income tax expense (as per financial statements) and taxes payable (on the company's tax return), and those usually will have to be paid at a later date, i.e. they are deferred. The company OWES them to the government, therefore, they are a liability. In some situations, those deferred taxes will not have to be paid, so the company can include those in equity (the stuff it owns).
I'm not sure if this helps much, but trust me you'll get more comfortable with this as you go along.