I this identity property of addition or additive inverse property?

9x + (-9x) + 12=0+12

I see both of the properties but I'm not sure ...

10!/ 4!2!2! divide using scientific calculator npr c (n, r) = n/r! (n! r!)

Write the number in which the digit 3 is ten times the value of the digit 3 in 156.32

Write a cosine equation with period 8 and amplitude 2

What is the probability of rolling a 6,4,4 on 3 consecutive rolls of a die

Graph y=2/5x, use x as - 2,-1,0,1,2

What are the steps of translating 2 or 1 step expressions?

How to solve this equation-1/2 a+3b-b+9

How do you Evaluate |-a2|, given a = 5, b = - 3, and c = - 2

Manuel drives 300 miles to Orlando fl. He drives at 50 mile per hour. After driving for two hours he takes 15 minutes break two hours after his first break he takes a 30 minutes break the he drive for two hours more including the two breaks how long

267.4 divided by 1/10