Find the measure of two supplementary angles, ÐA and ÐB, if mÐA = (3x – 7)° and mÐB = (2x + 2)°.
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Answer:
104 and 76
Explanation:
Sum of supplementary is 180
3x - 7 + 2x + 2 = 180
5x - 5 = 180
5x = 180 + 5
5x = 185
x = 185/5
x = 37
1st angle = 3x - 7 = 3(37) - 7 = 104
2nd angle = 2x + 2 = 2(37) + 2 = 76
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