Final answer:
The equation (7 x 8) x 9 = 7 x (8 x 9) exemplifies the Associative Property of multiplication, which allows numbers to be grouped differently without changing the product.
Step-by-step explanation:
The property of multiplication shown by the equation (7 × 8) × 9 = 7 × (8 × 9) is the Associative Property. This property states that when three or more numbers are multiplied, the way in which the numbers are grouped does not affect the product. Therefore, regardless of how the numbers are associated or grouped together in parentheses, the result of the multiplication remains unchanged.