Gus and Mark collect baseball cards and they keep them in plastic sleeves. Gus has 5 plastic sleeves that are full of cards. Mark has 2
sleeves full of cards and 6 additional cards.
If Gus and Mark have the same number of cards, which equation could
be used to find the number of cards in one sleeve?
A) 5s + 6 = 2s B) 5s = 2s + 6 C) s + 5 = s + 2 + 6 D) 5s = 2s - 6