@Glen_b I doubt many people in the US would include the word "transpose" in their description. "Isolate" is the operative word.

I'm just going by what your suggested search turned up; many of them discussed "transposing an equation".

@Glen_b That's a new one to me. Perhaps the terminology used in the grade schools has changed since I was there--it was a while ago :-).

A while for me as well. I was interested to see my daughter's mathematics class uses the term that I learned 40+ years ago.

And indeed learns it as a specific topic (which I did not, to my recollection, but the memory is imperfect).

@Glen_b I do not have the textbook I learned from, but I found a series of PDFs online that is based closely on it (and explicitly references it). It uses the verb "isolate" but not "transpose." See, e.g., files.eric.ed.gov/fulltext/ED075204.pdf. (This is chapter 3. For other chapters, change the "04" at the end to the decimal representation of one more than the chapter number.) Apparently there was some interest in Australia: see catalogue.nla.gov.au/Record/5242228.

The NLA collects ... a lot of stuff. It's a bit like the library of Congress in the US in that sense.

... yes I see some of the mentions of isolate there.

such as "to solve for x we must isolate x by eliminating..."