Seudónimo Seudónimo
  • 04-02-2021
  • Mathematics
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Zezima
Zezima Zezima
  • 04-02-2021

Answer:

132

Step-by-step explanation:

Alternate angles are equal. Therefore, A = B.

Find x

5x - 18 = 3x +42

2x = 60

x = 30

Substitute x in angle A

5(30) - 18 = 132

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