Which properties were used to prove that the expressions 7 x + 4 minus x minus 2 and 6 x + 2 are equivalent?

7 x + 4 minus x minus 2. 7 x minus x + 4 minus 2. (7 minus 1) x + 4 minus 2. 6 x + 2.
commutative, distributive, and addition
commutative, associative, and addition
associative, distributive, and addition
distributive, associative, and commutative

It's A or C, but I'm 99.99% sure it is definitely A.

Step-by-step explanation:

I think it's "A. commutative, distributive, and addition" because "+4" and "-x" get switched from "+4 -x" to "-x +4" which is the commutative property. The commutative property states that you can add or multiply in any order and still get the same answer.

For example,

a + b = b+ a.

1 x 2 =  2 x 1.

3 + 5 = 5 + 3.

2 times 2 times 2 times 3 times 5 times 7

or 2^3 times 3 times 5 times 7

Step-by-step explanation: