Calculating Angle Measures at Intersecting Lines

Two lines, Line A and Line B, intersect at a point O, forming four angles. If angle ∠AOB measures $x$ degrees, angle ∠BOC measures $3x$ degrees, and angle ∠COD measures $2x$ degrees, what is the value of $x$?

Recall that the sum of all angles around a point is $360$ degrees.