👉 In mathematics, a "duodi" (or "duodio") is an expression that consists of two or more terms separated by a single operator. This operator, commonly denoted as "+", can be used to combine or subtract these expressions. For example: 1. Duodi: 2x + 3y = 5 Where x and y are variables. 2. Duodi: (2x + 3y) - (4x - 7y)
