What is a variable in coding? Is it like the 'x' in my JAMB math?

You hit the nail on the head! It is very similar to math, but think of it more like a plastic container in your mother's kitchen. You might put sugar in it today, and salt tomorrow.

The container has a label (the variable name), and the stuff inside is the value. In coding, we use variables to hold information we want to remember later—like a player's score or a user's name from Abuja.

In my physics research, we used variables to track things like temperature. In your app, you might use it to track how many Naira a user has in their wallet. It's just a placeholder for data.