Answer:
3
Step-by-step explanation:
Given that:
The number of paint sets, Suzanne bought= 6
As each set contains the same number of brushes.
Let x be the number of brushes each set contains.
So, the total number of brushes in 6 sets = 6x.
It is given that the total number of brushes she has is 18, which is equals to 6x.
So, the required equation is
[tex]6x=18[/tex]
[tex]\Rightarrow x=\frac {18}{6}[/tex]
[tex]\Rightarrow x=3.[/tex]
Hence, the number of paint brushes each set contains is 3.
