Identify the property that justifies each step asked about in the answer area below.
Line 1: =
(−2x+10)+7x
Line 2: , left bracket, 10, plus, left bracket, minus, 2, x, right bracket, right bracket, plus, 7, x
Line 2: =
(10+(−2x))+7x
Line 3: , 10, plus, left bracket, minus, 2, x, plus, 7, x, right bracket
Line 3: =
10+(−2x+7x)
Line 4: , 10, plus, 5, x
Line 4: =
10+5x
Line 1: Distributive property of addition
Line 2: Commutative property of addition
Line 3: Associative property of addition
Line 4: Combine like terms (simplifying the expression)