find-all-functions-f-R-R-with-the-property-that-f-f-x-2y-10x-f-f-y-3x-holds-for-all-a-b-R-

Question Number 153989 by mathdanisur last updated on 12/Sep/21

find all functions f : R \to R with the

property that

f (f (x) + 2 y = 10 x + f (f (y) - 3 x)

holds for all a; b \in R