Respuesta :

x - 4 + 3x + 100 = 180
4x + 96 = 180
4x = 180 - 96
4x = 84
x = 21
4x-100-4=180
4x-96=180
    +96  +96
4x=84
x=21
angle 1: x-4= 21-4=17
angle 2: 3x= 3(21)=63