Question

Indicate which property is illustrated in Step 2.

Step 1 7x + 1 + 4x + 11 = (7x + 1) + (4x + 11)
Step 2 = 7x + (1 + 4x) + 11
Step 3 = 7x + (4x + 1) + 11
Step 4 = (7x + 4x) + (1 + 11)
Step 5 = (7 + 4)x + (1 + 11)
Step 6 = 11x + 12

distributive
commutative
arithmetic fact
associative

Answer 1

The root word for Associative is "associate" or "group" things
(a + b) + c = a + (b + c) groups the terms a little differently using associative property.