Which method will solve this equation completely?

16 – 9f = 47

CLEAR CHECK

Add 16 to both sides, and then divide both sides by -9.

Add 16 to both sides, and then multiply both sides by -9.

Subtract 16 from both sides, and then divide both sides by -9.

Subtract 16 from both sides, and then multiply both sides by -9.

The method that will solve the equation completely is to "subtract 16 from both sides, and then divide both sides by -9."