Question

What is 10n + 2n +9 I don't know that help me

Answer 1

Answer: 12n+9

Step-by-step explanation:

Add 10n and 2n.

Combine Like Terms... Like Terms = 10n and 2n.

Leave your 9 alone because there is nothing you can do to it. Add 10n and 2n together to get 12n.

That will give you your answer as 12n+9.

Hope this helps you out! Good luck! ☺

-Leif Jonsi-

Answer 2

12n+9

Explanation:

-Add 10n + 2n (Combine Like Terms)

= 12n

After that, , if there are no other changes to the "9", add it with 12n.

= 12n + 9