Question

question identify the variable in the expression below. a + 7 answer attempt 1 out of 2

Explanation:

Step1: Recall variable definition

A variable is a symbol (usually a letter) that represents an unknown or changing quantity.

Step2: Analyze the expression \(a + 7\)

In the expression \(a + 7\), the symbol \(a\) is the letter representing a quantity, while \(7\) is a constant. So the variable is \(a\).

Answer:

\(a\)