Willow solves the equation, 12 - p = 16 and gets that p = 4. What did she do wrong?

Willow made a mistake when solving the equation. The correct way to solve the equation is as follows:

12 - p = 16
Subtract 12 from both sides
- p = 4
Divide by -1 on both sides
p = -4

Therefore, Willow incorrectly solved the equation and the correct answer is p = -4, not p = 4.