月月家养了两株美人蕉，早晨红美人蕉开了3朵花，黄美人蕉凋谢了1朵，这时红美人蕉和黄美人的朵数都是12朵，原来那株美人蕉开的花多？多几朵？'@3p0A5q9Z2z2?*~6P7`9C1]
红美人蕉：'@3p0A5q9Z2z2?*~6P7`9C1]
算式：提示)H0v)],x;|5t0?/y1d2T'@3p0A5q9Z2z2?*~6P7`9C1]
黄美人蕉：'@3p0A5q9Z2z2?*~6P7`9C1]
算式：提示*K6{2n7b4{5b'@3p0A5q9Z2z2?*~6P7`9C1]
算式：提示9{5T._(r)J3n4U3m5O/_-I*s4J'@3p0A5q9Z2z2?*~6P7`9C1]
答：原来-h(J:u,J+v1N(g3y:n开的花多，多5g8X9W)v,b9u2O._:P朵。'@3p0A5q9Z2z2?*~6P7`9C1]