Let x=the larger number, and let y=the smaller number. From the information given, we can get:
x+y=61
x+7=3y
Subtracting the first equation from the second one, we get:
7-y=3y-61
-4y=-68
y=17
Substituting y into the first equation, we get:
x+y=61
x+17=61
x=44
Therefore, the larger number is 44 and the smaller number is 17.