It is in the attachment.
Let me know if this helps.
also let me know if it shows up for you and if it don't ill post your answer in the comments.
The answer is 7985.5 to get this answer you have to do the following
add both of the numbers as so:7,081+8,890=15,971
then divide 15,971÷2=7985.5
I believe it would be negative 5.7