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SOVA2 [1]
3 years ago
12

PLEADE HELP ILL GIVE BRAINLIST QUESTION IN PHOTO

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is an exterior angle of the triangle , then

15x + 5 + 22x + 4 = 120

37x + 9 = 120 ( subtract 9 from both sides )

37x = 111 ( divide both sides by 37 )

x = 3

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