Question

Which two options could be the next step in simplifying this expression?

15 + (5 + 21)

A.
15 + 26 (use order of operations)

B.
20 + 36 (use the distributive property)

C.
36 + 20 (use the commutative property)

D.
20 + 21 (use the associative property)

Answer 1

A and D?

Answer 2

Well...It would go I think like this. :)
21+5=26
Then I would bring 26 down...
15+26
and so the answer to the equations would be....
41!
Though that's not what where looking for...
It would be A, because that's the only one that matches what I just did. :)
I don't know what the second option would be. Non of the answer choices math.

Answer 3

Is there anymore answer choices or anything else to the equation?

Answer 4

no this is it

Answer 5

D also equals 41

Answer 6

Boy do I feel stupid, I didn't even think to solve the other answer choices. :) LOL.

Answer 7

So yeah, it should be A and D.

Answer 8

Thank you

Answer 9

Welcome. :)