A variable is nothing more than a friendly name (programmer/human friendly) for a value.  A value can be a number, an object, or a string of text(writing).  To create a variable, all you have to do it to use the name anywhere in the script.   You can use the name in an equation or just assign it a value, right off the bat, for example:

Name = "John Doe"
Address = "DLX Ave."
Ducks = 5
Geese = 6
Moose = Ducks * Geese

By: Matthew Holder