Perry spent 30$ on a magazine and some candy bars. If the magazine cost $6 and each candy bar cost $3, then how many candy bars did he buy?

8 candy bars.

Since he only bought 1, magazine, you can subtract 6 dollars from 30 to get 24 dollars. Now, to get the amount of candy bars he bought, you divide 24 by 3 (the amount of dollars for each candy bar) to get an answer of 8 candy bars.

Suppose the number of candy bars purchased is x

The questions say he bought A magazine, means one magazine

the equation is

3x+6=30

3x = 30-6

3x = 24

x = 8