Respuesta :

Answer:

51°

Step-by-step explanation:

(x+6)°+(3x-30)°=180°=

x+6+3x-30=80

x-24+3x=180

4x-24=180

4x-24+24=180+24

4x=204

x=51°

Answer:

it is 51

Step-by-step explanation: