Question

3 + a = y is the same as y = 3 + a. This is an example of which algebraic property?

Answer 1

Not a choice.

Answer 2

thats "commutative property of addition"
it means the order changes.

for example:
3+4=4+3
x+4+3=3+4+x
Just think of it as backwards. 3+4=4+3. 2+3+56=56+3+2

Also, never forget to put commutative prop. "of addition." Because there's commutative prop. of multiplication which is totally different.

Answer 3

Distributive Property

Associative Property of Addition

Commutative Property of Addition

Symmetric Property

Answer 4

Communitative Property

Answer 5

Don't you think it is the symmetric property?
See http://www.mathwords.com/s/symmetric_property.htm
The question does not change the order of addition.