5. There are x dictionaries in a bookstore. After 1/8 of them were purchased, 10 more dictionaries were shipped in bringing the total number of dictionaries to 52. What is the value of x?

Answer 1

after 1/8 were purchased, 7/8 were left. So, now we have

7/8 x + 10 = 52
7/8 x = 42
x = 48