how did world war one influence africans wish for equality?

If by Africans you mean people of Arican origin as well many of them
served in the war, fighting alongside white men. they did an equal
job, but were not treated as equals either then or later. Perhaps they
realised as never before that all men are created equal

Two reasons would be:
-Ethiopia defeated Italy in a war just prior to WWI, which may have
given other African countries the idea of gaining their own
independence (independence=equality)
-Having just fought the greatest war in history, at the time, all
European colonialists (France, Germany, UK, etc.), would've been at
their weakest state since the time they first colonized Africa.  This
would've gone a long way to influencing Africans to demand
independence (again, independence=equality)