∠A and \angle B∠B are supplementary angles. If m\angle A=(3x-23)^{\circ}∠A=(3x−23)

and m\angle B=(2x-12)^{\circ}∠B=(2x−12)

, then find the measure of \angle B∠B.
Is 43

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Answer:

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Answer:

74

Step-by-step explanation:

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