Question

Use the associative laws to rewrite
6+(9+y) as y +15

Answer 1

(6+9)+y
15+y

Answer 2

says that
a+(b+c)=(a+b)+c

Answer 3

Oh ok. So then when it says to finally use the commutative law of addition I think that that is where I get confused. I don't understand what to do with the answer and turn it into an answer for commutatuve law

Answer 4

would it simply be 15y