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dmitriy555 [2]
3 years ago
10

HELLLLLLLLLPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
algol133 years ago
8 0

Answer:

132

Step-by-step explanation:

Alternate angles are equal. Therefore, A = B.

<u>Find x</u>

5x - 18 = 3x +42

2x = 60

x = 30

<u>Substitute x in angle A</u>

5(30) - 18 = 132

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