x represents the cost of each bottle of juice. Given that he bought a pack containing 6 bottles of juice, the cost of the 6 pack juice bottles would be $6x
Given that the total cost of a bag of popcorn which costs $2.11 and a 6-pack of juice bottles is $11.41, it means that
2.11 + 6x = 11.41
6x = 11.41 - 2.11
6x = 9.3
x = 9.3/6
x = 1.55
The cost of each bottle of juice is $1.55