f(-8)=-4x-9

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Solution for f(-8)=-4x-9 equation: 


Simplifying
f(-8) = -4x + -9

Reorder the terms for easier multiplication:
-8f = -4x + -9

Reorder the terms:
-8f = -9 + -4x

Solving
-8f = -9 + -4x

Solving for variable 'f'.

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

Divide each side by '-8'.
f = 1.125 + 0.5x

Simplifying
f = 1.125 + 0.5x

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