Susan read 17 pages today That is 8 pages fewer than of the pages she read yesterday. How many pages did she read yesterday? (f point)
pages
Let's say Susan read X pages yesterday.
If she read 8 pages fewer today, then she read X - 8 pages today.
Since she read 17 pages today, we can write the equation X - 8 = 17.
Adding 8 to both sides of the equation gives X = 17 + 8.
Therefore, Susan read X = <<17+8=25>>25 pages yesterday. Answer: \boxed{25}.