Ifx=-21

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Solution for Ifx=-21 equation: 


Simplifying
Ifx = -21

Solving
fxI = -21

Solving for variable 'f'.

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

Divide each side by 'xI'.
f = -21x-1I-1

Simplifying
f = -21x-1I-1

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