Rotate + or - x degrees?

I would like to have a sprite randomly rotate either up to +x or -x degrees every so often. random(x) gives me a positive number but I'm looking for a formula that accomplishes returning a number between negative x and positive x but I can't figure it out, math is my weakness.

choose(-(random(x)),random(x))

choose(-(random(x)),random(x))

Perfect! That's fantastic.

That will be useful for so many different purposes.

Thanks so much