Why not just give it some temporary name, like ‘t’, supposedly it is only used in a very tight scope. Haskell and similar languages often do these things with `let in ..` or `.. with t=a+b`.
Not really better at all, but I feel this is a bit contrived example. If it really is just numeric addition that just let the compiler do its job, otherwise I’m sure there are better names for whatever you actually try to do. And, random helper variables are a thing even in math, you don’t name the thing the way you calculate that thing because then you don’t spare any character.
