Question

Jean wrote the following steps to simplify the expression (3x – 4y – x).

Step 1: 3x – x – 4y; using commutative property of addition
Step 2: 3x – (x – 4y); using associative property of addition
Step 3: 3x − (1 – 4)y; using distributive property of addition
Step 4: 3x − (−3)y; simplifying

Which step was incorrect, and what should be the correct step that Jean should use?
Answer

Answer 1

Step 2 was incorrect. Correct step: (3x – x) – 4y; using associative property of addition

Step 1 was incorrect. Correct step: 3x – 4y + x; using commutative property of addition

Step 2 was incorrect. Correct step: 3x + x – 4y; using associative property of addition

Step 1 was incorrect. Correct step: 3x – x + 4y; using commutative property of addition

Answer 2

What do you think it is so far?

Answer 3

^ good start.

Answer 4

either B or D..im not sure

Answer 5

Im thinking its B too

Answer 6

Hmm...i dont really know. But i dont want to guess either. thanks anyway!

Answer 7

@Ledah do you know? possibly?

Answer 8

Go with your first answer dude. its most likely always correct

Answer 9

gah..:/ thanks