Identify the property that justifies each step asked about in the answer area below.

Line 1: , left bracket, 3, plus, 2, x, right bracket, plus, 1
Line 1: =
(3+2x)+1
Line 2: , left bracket, 2, x, plus, 3, right bracket, plus, 1
Line 2: =
(2x+3)+1
Line 3: , 2, x, plus, left bracket, 3, plus, 1, right bracket
Line 3: =
2x+(3+1)
Line 4: , 2, x, plus, 4
Line 4: =
2x+4
Answer
Attempt 1 out of 3

Line 1 to Line 2:
Line 2 to Line 3:

Line 1 to Line 2: Commutative Property of Addition

Line 2 to Line 3: Associative Property of Addition