3 answers
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A pair of vertical angles have equal measures. Therefore, since m∠1 = 106°, we have:
m∠2 = 106°
Since m∠2 = (3x - 75)°, we can set up the equation:
3x - 75 = 106
Therefore, the equation to solve for x is:
3x - 75 = 106
So, the correct answer is A. 3x°−75°=106°.