Points A, B, and C are on line AC. A horizontal line has points A, B, C. A line extends from

Points A, B, and C are on line AC.

A horizontal line has points A, B, C. A line extends from point B up and to the left to point D. Angle D B C is 140 degrees.
Angle CBD has a measure of 140°. What is the measure of angle ABD?
40°
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