Julian and ben collect comic books. julian has 12 more than ben has, and together they want to triple their collection for a total of 66 comic books.

which equation can be used to find the number of comic books ben owns, b?

12b=66 then to triple it just multiply by 3

Julian= b + 12 (12 more comic books then Ben)

This is the equation of their combined collection of comic books:
3(j +b)=66

Finally we simplify:
Julian= b+12 --> 12 more than Ben
3(j+b)=66 --> our equation
3(b+12+b) --> j replaced in terms of b
3(2b+12)=66 --> our equation to solve for b

b= # of comic books Ben has
b+12= # of comic books Julian has

3(b+ (b+12) =66
3(2b+12)=66
6b+36=66
6b=30
b=5 

**Hope this helps you! Feel free to message me if you have any further questions. Have a nice day! :)**