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We consider a system of birational functional equations (BFEs) (orfinite-difference equations at w=m \in Z) for functions y(w) of the form:y(w+1)=F_n(y(w)), y(w):C \to C^N, n=deg(F_n(y)), F_n \in (\bf Bir}(C^N), wherethe map F_n is a given birational one of the group of all automorphisms of C^N\to C^N. The relation of the BFEs with ordinary differential equations isdiscussed. We present a general solution of the above BFEs for n=1,\forall Nand of the ones with the map F_n birationally equivalent to F_1: F_n\equivV\comp F_1\comp V^{-1}, \forall V \in (\bf Bir}(C^N).

General solution of functional equations defined by generic  linear-fractional mappings F_1: C^N \to C^N and by generic maps birationally  equivalent to F_1