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jeyben [28]
3 years ago
7

Please someone help quickly thank you very much

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

I think the answer is 81.

Step-by-step explanation:

Vertical angles are congruent.

x + 3 = 84

  - 3  = -3

--------------

x = 81

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