Question 1092655
L = S+4
8L = 12S-24 substitute for L:
8(S+4) = 12S-24
8S+32 = 12S-24 add 24 on both sides and subtract 8S on both sides, and you get:
56 = 4S rewrite to get the unknown on the left:
4S = 56
S = 14 this is the cost of a small bottle.