If 15#2=26, 11#3=16 and 10#9=2, then find the value of 11#4=?

Let's decipher the mathematical logic hidden behind the sign #:
Consider A#B=2×(A−B)

Let us test this rule against the given equations:

For 15#2:

2×(15−2)=2×13=26
(Satisfied)

For 11#3:

2×(11−3)=2×8=16
(Satisfied)

For 10#9:

2×(10−9)=2×1=2
(Satisfied)

Applying the same logic to calculate 11#4:

2×(11−4)=2×7=14
Thus, the value is 14.