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MatroZZZ [7]
3 years ago
5

Find the value of x. A. 10 B. 15 C. 20 D. 25

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
6 0

Answer:

(5x+13)+(3x+7)=180°

5x+3x=180°-7°-13°

8x=160°

x=160/8

x=20°

option C is correct

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