[sbergot]

You left out the more common options:

    (1 + x * 2 - 3) % x

and

    (1 + (x * 2) - 3) % x

both are clearer than the S-expression in my opinion

[zelphirkalt]

I don't find them to be clearer, with the background of knowing many language, because now I have to worry about precedence and I better double check, to not get it wrong or read it wrong.

[Paul-Craft]

I agree, and this is why for math expressions that aren't just composition of functions that aren't basic operators, I like to use a macro that lets me type them in as infix. It's the one case where lispy syntax just doesn't work well, IMO.