ndicate which property is illustrated in Step 2.

Step 1 7x + 12 + 12x + 1 = (7x + 12) + (12x + 1)
Step 2 = 7x + (12 + 12x) + 1
Step 3 = 7x + (12x + 12) + 1
Step 4 = (7x + 12x) + (12 + 1)
Step 5 = (7 + 12)x + (12 + 1)
Step 6 = 19x + 13

associative
distributive
arithmetic fact
commutative

Question

ndicate which property is illustrated in Step 2.

Step 1	7x + 12 + 12x + 1	=	(7x + 12) + (12x + 1)
Step 2		=	7x + (12 + 12x) + 1
Step 3		=	7x + (12x + 12) + 1
Step 4		=	(7x + 12x) + (12 + 1)
Step 5		=	(7 + 12)x + (12 + 1)
Step 6		=	19x + 13

    associative
    distributive
    arithmetic fact
    commutative

jigglypuff314 · Answer

it's a change in grouping and nothing else, so associative :)