Substituting 1 for x in the equation 5x + 3=x⋅5 + 3 is a test case for which property?(1 point)

Substituting 1 for \( x \) in the equation \( 5x + 3 = x \cdot 5 + 3 \) is a test case for the **Commutative Property of Multiplication**.

In this equation, \( x \cdot 5 \) is equivalent to \( 5x \) (due to the commutative property of multiplication), which is demonstrated by testing with the substitution of \( x = 1 \).

So, the correct answer is:

**The Commutative Property of Multiplication**.