Susan read 17 pages today. That is 8 pages fewer than 1/3 of the pages she read yesterday. How many pages did she read yesterday.
Let X be the number of pages Susan read yesterday.
We know that (1/3)X - 8 = 17.
Thus, (1/3)X = 17 + 8 = 25.
Thus, X = 25 * 3 = <<25*3=75>>75. Answer: \boxed{75}.
Let's assume the number of pages Susan read yesterday is "x".
According to the given information, Susan read 17 pages today, which is 8 pages fewer than 1/3 of the pages she read yesterday.
We can represent this information using the equation: 17 = (1/3)x - 8.
To solve for x, let's isolate x on one side of the equation:
17 + 8 = (1/3)x
25 = (1/3)x
To get rid of the fraction (1/3), we can multiply both sides of the equation by 3:
25 * 3 = x
75 = x
Therefore, Susan read 75 pages yesterday.
To find out how many pages Susan read yesterday, we need to set up an equation based on the given information. Let's say the number of pages she read yesterday is represented by the variable "x."
According to the information provided, Susan read 8 pages fewer than 1/3 of the pages she read yesterday. So, 1/3 of the pages she read yesterday can be calculated as (1/3)x.
Therefore, the equation becomes: (1/3)x - 8 = 17.
To solve this equation and find the value of x, we can first add 8 to both sides: (1/3)x = 17 + 8.
Simplifying the equation further, we get: (1/3)x = 25.
To solve for x, we can multiply both sides of the equation by 3 to get rid of the fraction: 3 * (1/3)x = 3 * 25.
This simplifies to: x = 75.
So, Susan read 75 pages yesterday.