One more ploblem:

Find all functions f: Z$\displaystyle \rightarrow$Z $\displaystyle \therefore$$\displaystyle f(f(x)+x+1)=x+f(y)+1 $

Thank you very much in advance

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- Jan 26th 2013, 06:43 AMdarenceFunctional equations
One more ploblem:

Find all functions f: Z$\displaystyle \rightarrow$Z $\displaystyle \therefore$$\displaystyle f(f(x)+x+1)=x+f(y)+1 $

Thank you very much in advance