f(x)+f(y)=4

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Solution for f(x)+f(y)=4 equation: 


Simplifying
f(x) + f(y) = 4

Multiply f * x
fx + f(y) = 4

Multiply f * y
fx + fy = 4

Solving
fx + fy = 4

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Reorder the terms:
-4 + fx + fy = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + fx + fy = 0

The solution to this equation could not be determined.

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