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Line m is parallel to line n. The measure of angle 3 is (2x− 3)°. The measure of angle 6 is (x + 39)°. What is the measure of angle 3?

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Are they corresponding angles? If so, 2x-3=x+39. Are they supplementary angles? If so, 2x-3+x+39=180. Are they complementary angles? If so, 2x-3+x+39=90.

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