I would say 4(y+6)=48 because of you substitute the parentheses it leads you to 4y+24=48 then you would subtract 24 to 48. The equation would look like 4y=24
Now you would divide 4y by 24 which would give you y=6
In the other one this is how the value would look
12(y+6)=48
12y+72=48
12y=-24
Y= -2
Which -2 is less than 6 so therefore 6 has a greater value.