f(-2)=20x-4

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Solution for f(-2)=20x-4 equation: 


Simplifying
f(-2) = 20x + -4

Reorder the terms for easier multiplication:
-2f = 20x + -4

Reorder the terms:
-2f = -4 + 20x

Solving
-2f = -4 + 20x

Solving for variable 'f'.

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

Divide each side by '-2'.
f = 2 + -10x

Simplifying
f = 2 + -10x

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