Triangle Geometry Angle Calculation

In a triangle ABC, angle A measures 40 degrees. The angle bisector of angle A meets side BC at point D. If angle BAC is divided into two angles: angle BAD and angle DAC, which measure x degrees and (40 - x) degrees respectively, what is the measure of angle ADB if angle B measures 70 degrees?

Calculate angle ADB using the property of interior angles of triangle ABC.