Evaluate 2(g(3))+g(-4)

$2 (g (3)) + g (- 4)$

Simplify each term.

Move $3$ to the left of $g$ .

$2 (3 g) + g (- 4)$

Multiply $3$ by $2$ .

$6 g + g (- 4)$

Move $- 4$ to the left of $g$ .

$6 g - 4 g$

Subtract $4 g$ from $6 g$ .

$2 g$