It could be x/16 or 16/x. The x could be substituted by any other letter, for example, y/16 or 16/y.
n/16 - 3
x+2=
n-4
-(n/12)
N/9
x/7
12+(16/x)
4-(n/7) *the foreward slash represents the divided by sign
I would say the anwser would be 11
If ' x ' is your number, then the quotient is 2x/6.
n/16 - 3
x/8
x/15
x+2=
n-4
N/8
-(n/12)