Evaluate f(-3)+2f(-1)-f(4)

$f (- 3) + 2 f (- 1) - f (4)$

Simplify each term.

Move $- 3$ to the left of $f$ .

$- 3 f + 2 f (- 1) - f \cdot 4$

Multiply $- 1$ by $2$ .

$- 3 f - 2 f - f \cdot 4$

Multiply $4$ by $- 1$ .

$- 3 f - 2 f - 4 f$

$- 3 f - 2 f - 4 f$

Simplify by adding terms.

Subtract $2 f$ from $- 3 f$ .

$- 5 f - 4 f$

Subtract $4 f$ from $- 5 f$ .

$- 9 f$

$- 9 f$

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