Respuesta :
total de aviones perdidos =25
norteamericanos = x
coreanos = 25 -x
25-x = x+17
25-17 = x+x
8 /2 = x
4 = x
los norteamericanos pierden 4
norcoreanos pierden 25-4 =21
comprobacion
25 -4 = 4+17
21 =21
norteamericanos = x
coreanos = 25 -x
25-x = x+17
25-17 = x+x
8 /2 = x
4 = x
los norteamericanos pierden 4
norcoreanos pierden 25-4 =21
comprobacion
25 -4 = 4+17
21 =21