f(fx)=4x-9

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Solution for f(fx)=4x-9 equation: 


Simplifying
f(fx) = 4x + -9

Multiply f * fx
f2x = 4x + -9

Reorder the terms:
f2x = -9 + 4x

Solving
f2x = -9 + 4x

Solving for variable 'f'.

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

Divide each side by 'x'.
f2 = -9x-1 + 4

Simplifying
f2 = -9x-1 + 4

Reorder the terms:
f2 = 4 + -9x-1

Reorder the terms:
-4 + f2 + 9x-1 = 4 + -9x-1 + -4 + 9x-1

Reorder the terms:
-4 + f2 + 9x-1 = 4 + -4 + -9x-1 + 9x-1

Combine like terms: 4 + -4 = 0
-4 + f2 + 9x-1 = 0 + -9x-1 + 9x-1
-4 + f2 + 9x-1 = -9x-1 + 9x-1

Combine like terms: -9x-1 + 9x-1 = 0
-4 + f2 + 9x-1 = 0

The solution to this equation could not be determined.

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