. A bookstore sold 18,000 paperbacks one month. This was 10% less than the number of paperbacks the store sold the previous month. The following equation represents this situation, where x represents the number of paperbacks sold the previous month.
x - 0.1x = 18,000

Question

. A bookstore sold 18,000 paperbacks one month. This was 10% less than the number of paperbacks the store sold the previous month. The following equation represents this situation, where x represents the number of paperbacks sold the previous month. 
x - 0.1x = 18,000

anonymous · Answer

find x?
0.9x = 18000
you can do the rest