Question

Which of these shows 9 + 4p rewritten using the commutative property of addition?

4p + 9

9p + 4

9 − 4p

4p − 9

Answer 1

9 + 4p

rewritten using the commutative property of addition = 4p + 9

answer 4p + 9 (first choice)

Answer 2

Option (1)
`4p+9`

Explanation:

Commutative property of addition states that while adding two real numbers m and n, the order of adding doesn't matter, i.e. we can add, m and n as
`m+n` as well as
`n+m`.

So, we can conclude that the commutative property of addition states that there will be no impact of ordering the terms.

Now, we have
`9+4p`

So, by the commutative property of addition we can say that
`4p+9` is same as
`9+4p`.

Hence, the expression shown in option (1) is correct.