Iam dumb and cant count

[zathros]

I hate being thick.
Could someone please tell me how to make a count of a list of 12 cells
say a3 to m3 as long as the value of each cell is 9.
eg if all are 9 except b3 then result would be 11.
Many thanks
sorry for being stupid.

[MDubbelboer]

=countif(a3:m3,9)