Respuesta :

He left Rome and went to the Byzantine empire

The phrase that tells what Constantine finally did when his reforms failed to help Rome is "He departed Rome for the Byzantine Empire.".This is further explained below.

What is departed?

Generally, a departed  is simply defined as something that must have passed away or occurred in the distant past.

In conclusion, "He abandoned Rome for the Byzantine Empire," is the expression that describes what Constantine did when his reforms failed to assist Rome.

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