Question Number 196760 by tri26112004 last updated on 31/Aug/23
$${f}:\:{R}\rightarrow{R} \\ $$$${f}\left({f}\left({x}+{y}\right)\right)={f}\left({x}\right)+{f}\left({y}\right) \\ $$$${Find}\:{f}\left({x}\right)=¿ \\ $$
f-R-R-f-f-x-y-f-x-f-y-Find-f-x-