f(-x)=2x-4

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Solution for f(-x)=2x-4 equation: 


Simplifying
f(-1x) = 2x + -4

Remove parenthesis around (-1x)
f * -1x = 2x + -4

Reorder the terms for easier multiplication:
-1f * x = 2x + -4

Multiply f * x
-1fx = 2x + -4

Reorder the terms:
-1fx = -4 + 2x

Solving
-1fx = -4 + 2x

Solving for variable 'f'.

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

Divide each side by '-1x'.
f = 4x-1 + -2

Simplifying
f = 4x-1 + -2

Reorder the terms:
f = -2 + 4x-1

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