OK, new question, how do I add text to a variable?

Scripting Forums AppleScript | Classic Mac OS
#1

How can I set a new variable to some text plus the text from a previous variable? For example, I set the filename of a selection to a first variable, and then I want to set a second variable to “1-filename”. How do I do that?

#2

Could it be possible to add two variables to make a third?

#3

set x to x & y