<image>If the length of the AB side is 20, the length of the AD side is $2x + 5$, the length of the AC side is $x + 3.92$, the degree of the CAD angle is 25 and the degree of the CDA angle is 30, compute the degree of the CBA angle. Round computations to 2 decimal places and round the value of the variable "x" to the nearest natural number.