Question

Please help MEDAL and FAN!!!!
To simplify 6y + 2y, a student showed the following steps:
6y + 2y = y * 2 Line 1
= y(6 + 2) Line 2
= y(8)
= 8y
Which properties of real numbers are used in these steps?
A) the Commutative and Associative Properties
B) the Commutative and Distributive Properties
C) the Addition Property of Equality and the Associative Property
D) the Associative and Distributive Properties

Answer 1

http://library.thinkquest.org/2647/algebra/post.htm

bottom

Answer 2

I dont understand the way it explains that :/

Answer 3

its b...Commutative and Distributive Properties

Answer 4

how do you get it?

Answer 5

6y + 2y = y * 2 Line 1

i don't get this line. is it saying 6y+2y=2y?

Answer 6

I actually used what tomo said and I went to his website link and it had at the bottom the explanations for Commutative and Distributive Properties

Answer 7

y times 2 @tomo

Answer 8

i don't think that can be true.

take for instance, 6*1 + 2*1 = 2*1 which is not true.

Answer 9

its just what the question said....My math teacher makes all the questions, and hes not very bright when it comes to math...and he even said that

Answer 10

GO with b :)

Answer 11

ok thank you :)

Answer 12

no problem :) have a good day (:

Answer 13

you too

Answer 14

:)