1996 Honda Accord Tire wear

You're right; it could be either one. Negative camber will cause accelerated wear on the inside edge of that one tire only, but both wheels can have excessive negative camber. Total toe always affects both tires on the same axle. The clue is incorrect total toe causes the tires to scrub across the road. If there's enough tread, the blocks of rubber will walk toward or away from the center of the car, then they'll spring back. That results in a feather edge pattern that you can sometimes see and always feel when you run your hand over it. You'll feel your fingers catch on the raised edges when you run them one way but not the other way. Less of that springing back occurs when the tread is worn away so in those cases you really need to have the car on an alignment computer to see what's wrong.