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11-03-2022
Mathematics

contestada

ZA and B are vertical angles. If m_A = (3x - 30° and mZB = (2x – 9)°,
then find the value of x.

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whattheheck076 whattheheck076

11-03-2022

3x-30=2x-9
-2x -2x
1x-30=-9
+30 +30
1x=21
21/1
x=21

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