f(-4)=-2*-4-5

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Solution for f(-4)=-2*-4-5 equation: 


Simplifying
f(-4) = -2 * -4 + -5

Reorder the terms for easier multiplication:
-4f = -2 * -4 + -5

Multiply -2 * -4
-4f = 8 + -5

Combine like terms: 8 + -5 = 3
-4f = 3

Solving
-4f = 3

Solving for variable 'f'.

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

Divide each side by '-4'.
f = -0.75

Simplifying
f = -0.75

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