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

12n+9

Step-by-step 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

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-

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.