Evaluate 9m(2p-n+3)

$9 m (2 p - n + 3)$

Apply the distributive property.

$9 m (2 p) + 9 m (- n) + 9 m \cdot 3$

Simplify.

Rewrite using the commutative property of multiplication.

$9 \cdot 2 m p + 9 m (- n) + 9 m \cdot 3$

Rewrite using the commutative property of multiplication.

$9 \cdot 2 m p + 9 \cdot - 1 m n + 9 m \cdot 3$

Multiply $3$ by $9$ .

$9 \cdot 2 m p + 9 \cdot - 1 m n + 27 m$

Simplify each term.

Multiply $9$ by $2$ .

$18 m p + 9 \cdot - 1 m n + 27 m$

Multiply $9$ by $- 1$ .

$18 m p - 9 m n + 27 m$