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15 April, 10:24

One angle measures nine more than six times a number. A sequence of rigid motions maps the angle onto another angle that described as being 30 less than nine times the number. what is the measure of the angle in degrees?

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  1. 15 April, 10:36
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    Step-by-step explanation: one angle is 6x + 9 also equals to 9x - 30

    9x - 30 = 6x + 9

    3x = 39, x = 13

    Angle is 6*13+9 = 87
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