Question

does this describe an expression or an equation? the sum of 3 and y expression equation

Explanation:

Step1: Recall definitions

An expression is a combination of numbers, variables, and operations (like +, -, ×, ÷) without an equality sign. An equation has an equality sign (=) showing two expressions are equal.

Step2: Analyze "the sum of 3 and y"

"The sum of 3 and y" translates to \( 3 + y \), which is a combination of a number (3), a variable (y), and an operation (+) with no equality sign. So it's an expression.

Answer:

expression