OpenStudy (anonymous):

Karen wrote the following steps to simplify the expression: 4 – (2x + 3x – 1). 0: 4 – (2x + 3x – 1)---Given step 1: 4 – 2x – 3x + 1---Distributive Property step 2: 4 + 1 – 2x – 3x---Associative Property of Addition step 3: (4 + 1) + (–2x – 3x)---Associative Property of Addition step 4: 5 – 5x--Combine Like Terms Which step of justification is incorrect, and what should the justification for that step be to simplify the expression? Step 4; Distributive Property Step 2; Commutative Property of Addition Step 3; Associative Property of Multiplication Step 1; Multiplication Property of Equation

5 years ago
OpenStudy (anonymous):

I don't think that's the associative property of addition (step 2), i think that's commutativity.

5 years ago
OpenStudy (anonymous):

You were right, thank you :)

5 years ago