Answer: 19
Step-by-step explanation:
Data: 9+10=x
Only step, Add 9+10
10+9=19
Reason: Since + means addition, you have to combine them together and when you do that, all you have to do is count 9 numbers up from 10 to reach 19.
That is how you arrive at the answer of 19
I hope this helps!
(Also, please ask real questions next time)
