I assume this means that Brand A has a value that is $47 billion more than the value of Brand B. Let x = the value (in billions)of Brand B. Then we have:
Brand A = x + 47
x + (x + 47) = 107
2x + 47 = 107
2x = 60
x = 30 billion dollars, so Brand B is worth 30 billion dollars, and Brand A is worth 77 billion dollars