f-1(x)=

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Solution for f-1(x)= equation: 


Simplifying
f + -1(x) = 0

Solving
f + -1x = 0

Solving for variable 'f'.

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

Add 'x' to each side of the equation.
f + -1x + x = 0 + x

Combine like terms: -1x + x = 0
f + 0 = 0 + x
f = 0 + x
Remove the zero:
f = x

Simplifying
f = x

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