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Omni-MATH / Find all functions f:R^(+)→R^(+), such that f(x+f(x)+f(y))=2f(x)+y for all positive reals x,y. · Discussion

Discussing Find all functions f:R^(+)→R^(+), such that f(x+f(x)+f(y))=2f(x)+y for all positive reals x,y. · Omni-MATH

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