If 3 of Teairra's shirts are plaid, 5-3=2 shirts are not plaid.
Also, 5 of Teairra's pants are purple, meaning 24-5=<<24-5=19>>19 pants are not purple
The number of shirts and pants that Teairra has which are neither plaid nor purple is 19+2=<<19+2=21>>21
#### 21