Respuesta :
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