Answer:
Associative property of multiplication
Step-by-step explanation:
To show that 9(3x) = 27(x), we need to show that 9(3x) = (9 * 3)x.
The APM does just that. By this property, in multiplication, the order of which numbers are multiplied do not matter.
So, 9(3x) = (9 * 3)x.
And by multiplication, (9 * 3)x = 27x.
So 9(3x) = 27x
