Respuesta :
let x be the length of the short song
length of long one is 2x - 126
2x -126 = 286
2x = 412
x = 206
length of long one is 2x - 126
2x -126 = 286
2x = 412
x = 206
Shorter song= y seconds
Longer song=2y-126
2y-126=286
2y=412
y=206
The shorter song is 206 seconds
Longer song=2y-126
2y-126=286
2y=412
y=206
The shorter song is 206 seconds