Apply the commutative property to to generate an expression equivalent to 8 + 9 f - 2 + 6 f - 8 f - 4 + 12

To apply the commutative property, we can rearrange the terms in a way that the variables are grouped together, and the constants are grouped together.

Starting with the given expression:
8 + 9f - 2 + 6f - 8f - 4 + 12

Rearranging the terms:
(8 - 2 - 4 + 12) + (9f + 6f - 8f)

Simplifying the constants:
(8 - 2 - 4 + 12) + (9f + 6f - 8f)
= 14 + (9f + 6f - 8f)

Combining like terms on the right side:
14 + (9f + 6f - 8f)
= 14 + 7f