f(-1)=4-2(-1)

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Solution for f(-1)=4-2(-1) equation: 


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

Reorder the terms for easier multiplication:
-1f = 4 + -2(-1)

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

Combine like terms: 4 + 2 = 6
-1f = 6

Solving
-1f = 6

Solving for variable 'f'.

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

Divide each side by '-1'.
f = -6

Simplifying
f = -6

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