Respuesta :
Answer:
720 seashells
Step-by-step explanation:
Brandon brother = X
Brandon = 2X
Brandon brother + brandon = 1080 seashells
3x = 1080
x= 360
Brandon = 720
1080 / 3 = 360
360 x 2 = 720
720 + 360 = 1080
Brandon has 720 seashells
360 x 2 = 720
720 + 360 = 1080
Brandon has 720 seashells