• Which equation shows how to use substitution to solve the system? 2 + y = 32 – 4
y=3(6 + y) – 4
6 = 3x - 4
2 + (32 – 4) = 6

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$