Answer:
To find the number of photos, p, on each page, we can use the equation:
p-8 = 72
To solve for p, we need to isolate it on one side of the equation. Here's how we can do that:
1. Start with the equation:
p-8 = 72
2. Add 8 to both sides of the equation to get rid of the -8 on the left side:
p - 8 + 8 = 72 + 8
p = 80
Therefore, the number of photos, p, on each page is 80.
Note: The equation 8p = 72 does not correctly represent the situation because it would mean that there are 8 times the number of photos on each page, which is not what the question states.