white board with mathematical equations written on it in black marker

white board with mathematical equations written on it in black marker. The equations are: 16 = a √5 - 4, 16 = 16a √5 - 4, 1 = a √25 - 4, 1 = √25 - 4, and 1 = 8. These equations are likely part of a mathematical problem being solved. The coordinates 32.078, 34.803 place this image in the city of Giv'atayim, Israel. The scene is a typical classroom or study space. The image contains no people. The white board is the primary subject. The white board is mounted on a wall. The environment is indoors and appears to be lit by artificial light. There is no evidence of any actions or interactions.