HELP ASAP BRAINLIEST FOR FIRST CORRECT ANSWER In triangle ABC, m∠A=(5x−10)∘, m∠B=(12x)∘, and the exterior angle at C is (16x)∘. Triangle A B C. Angle A measures 5 X minus 10 degrees & angle B measures 12 X degrees. The exterior angle adjacent to angle C measures 16 X degrees.

(picture bellow)

What is the measure of the exterior angle at C?
Enter your answer as the correct value, like this: 42