Question

identify the variable in the expression below. 12 + 3y

Explanation:

Step1: Recall variable definition

In an algebraic expression, a variable is a symbol that can take on different values.

Step2: Analyze given expression

In the expression $12 + 3y$, the number 12 is a constant and 3 is a coefficient. The symbol $y$ can represent different values.

Answer:

$y$