In the video, a person is seen writing a mathematical equation on a whiteboard using a black marker. The person starts by writing the equation and then proceeds to solve it step by step. The equation appears to be a complex mathematical problem involving variables and mathematical operations. The person's hand is steady as they write, and they take their time to ensure that each step of the solution is clear and accurate. The whiteboard provides a clean and uncluttered background for the equation, making it easy to follow along with the solution. The video is shot from a close-up angle, focusing on the person's hand and the whiteboard.