Question

The value of x in (6x-40)°+(5x+9)°+(3x+15)°=180° is- ​

Answer 1

Answer:

Step-by-step explanation:

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

= 14x + 24 - 40 = 180

= 14x - 16 = 180

= 14x = 180 + 16

= 14x = 195

• x = 195/14

• x = 13