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3 years ago

30 POINTS easy question

Mathematics

2 answers:

blagie [28]3 years ago

6 0

9

9x +9 = 45+5x
4x = 36
x =9

jenyasd209 [6]3 years ago

3 0

Answer:

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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