Question

The steps in the simplification of the expression 6 + 3x + 4y − 2x – y − 7 are shown below.

Step 1: 6 – 7 + 3x − 2x + 4y − y
Step 2: (6 − 7) + (3x − 2x) + (4y − y)
Step 3: −1 + x (3 − 2) + y (4 − 1)
Step 4: −1 + x (1) + y (3)
Step 5: −1 + x + 3y

Which statement is correct?

Step 2 uses associative property of addition, and step 3 uses distributive property of addition.

Step 1 uses commutative property of addition, and step 5 uses associative property of addition.

Step 4 uses associative property of addition, and step 3 uses commutative property of additi

Answer 1

I think the second step is right
just note there that all the terms are re arranged : that is the main thing about commutative property : of addition
a+b=b+a

Answer 2

Oh okay. I see what you mean.

Answer 3

oops sorry i am wrong wait

Answer 4

lol how?

Answer 5

2nd option states that step 5 uses associative property that is not true

Answer 6

1st option is right

Answer 7

ok. and how is it distributive on the third statmenet

Answer 8

we took common : ab+ac=a(b+c)