Please show me the solution for: In Tate’s garden pond, there are 4 male guppies, 7 female guppies, 3 male goldfishes, and 5 female goldfishes.  He buys 2 male guppies, 1 female guppy, 2 male goldfishes, and 3 female goldfishes.  How many more female fishes than male fishes does Tate have?