Question

please tell the answer​

Answer 1

Answer:

14

Explanation:

(5x+9)+(6x−40)+(3x+15)=180(straightlineangles)

5x+9 + 6x-40 + 3x+15 = 180°

=> 5x+6x+3x + 9-40+15 = 180°

=> 14x + 24-40 = 180°

=> 14x-16 = 180°

=> 14x = 180+16

=> x = 196/14

=> x = 14. ans

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