Respuesta :

X = 8
18+90 = 108
180-108=72
72/9=8

Answer:

x=8

Step-by-step explanation:

< LJG + <GJH + HJW = 180   since it forms a straight line

9x + 90+ 18 = 180

Combine like terms

9x+ 108 = 180

Subtract like 108 from each side

9x +108-108 = 180 -108

9x =72

Divide each side by 9

9x/9 = 72/9

x = 8