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777dan777 [17]
3 years ago
8

(8) Please check my answer geo

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0
You have the correct answer and steps

A+B = 180
3x-15+9x+15 = 180
12x = 180
x = 180/12
x = 15

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