Respuesta :

AnGelicSuhu

As we know that Angle interior on same side are equal. So,

7x + 1 = 4 + 18x

7x - 18x = 4 - 1

- 11x = 3

x = - 3/11

Davidpiyush

Answer:

7x + 1 +4 + 18x = 180 ( co interior. angle)

7x+18x+1+4=180

25x+5=180

25x=180-5

x=175/25

x= 7

  1. 7x +1 = 7×7+1=50
  2. 4+18x=4+18×7=130