Respuesta :

YukkiD
for this question those lines mean you have to simplify everything that is outside of those lines.
9-1 equals 8 which gives us
2+x=8
8-2 equals 6
x=6
AnimeBrainly
x = 6 
2 + 6 = 8 
8 + 1 = 9 

True

hope this helps