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 equation
x
−
0.1
x
=
18
,
000
represents this situation, where
x
represents the number of paperbacks sold the previous month.

Determine the number of paperbacks the store sold in both months combined.

20,000
20,000

180,000
180,000

35,990
35,990

34,200
34,200

38,000