Using the relation, answer the questions given below.
\(@(A,B) =\) average of A & B
\\((A,B) =\) product of A & B
\(×(A,B) =\) the result when A is divided by B.
If \(8x + 5x + 2x + 4x = 114\), then, \(5x + 3 = ?\)
If \(r = 5 z\) then \(15 z = 3 y,\) then \(r =\)