The equation that could be used to find how many charms are on a bracelet that costs $96 will be: [tex]12+6c=96[/tex] and they can buy 14 charms.
Explanation
The cost of a charm bracelet is $12 without the charms and the additional cost is $6 for each charm.
If the number of charms added to the bracelet is '[tex]c[/tex]' , then the total additional cost for the charms will be: [tex]\$6c[/tex]
Given that, the total cost of the bracelet with charms is $96.
So the equation will be: [tex]12+6c=96[/tex]
Now solving the above equation, we will get.....
[tex]12+6c=96\\ \\ 6c=96-12=84\\ \\ c=\frac{84}{6}=14[/tex]
Thus, they can buy 14 charms.