Question

Karen wrote the following steps to simplify the expression: 4 – (2x + 3x – 1).
Step

Mathematical Statement

Justification

0

4 – (2x + 3x – 1)

Given

1

4 – 2x – 3x + 1

Distributive Property

2

4 + 1 – 2x – 3x

Associative Property of Addition

3

(4 + 1) + (–2x – 3x)

Associative Property of Addition

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?

Answer 1

step one is incorrect i thnk because it doesnt mean in the question given.. and the ans of this question end up to 5(1-x)..

Answer 2

Thank you!:)