Respuesta :

crisforp
b = 4m - 5 and m + b = 60, where m is Maggie's age and b is her brother's age;
Then, m + 4m - 5 = 60;
5m = 65;
m = 65 ÷ 5;
m = 13 years;
b = 60 - 13;
b = 47 years;