Question

what must be added to -23 to get -9 ?

Answer 1

Hello!
Here is your answer

According to the question we should add some numbers to -23 to get -9

Let the Unknown number be β

Then
-23 + β = -9

β = -9+23 = 14

Answer is

14

Answer 2

Hey Friend
Here is your answer

Let the missing number = x
According to the equation,
-23 + x = -9
x = -9 + 23
x = 14

Hope this helped you
Have a nice day.