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Allisa [31]
2 years ago
6

30 POINTS easy question

Mathematics
2 answers:
blagie [28]2 years ago
6 0
9


9x +9 = 45+5x
4x = 36
x =9
jenyasd209 [6]2 years ago
3 0

Answer:

9

Step-by-step explanation:

The exterior angle is equal to the sum of the 2 opposite interior angles, therefore:

9x + 9 = 45 × 5x

4x = 36

x = 9

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