Question

a

Answer 1

which do you think?

Answer 2

hmm where did you distribute here?

Answer 3

hint:

you're going to turn a - 2b + 2a

into a + 2a - 2b

Answer 4

so what's happening?

Answer 5

you want to collect like terms, so on the left side, we have that 2b in between the a's

Answer 6

why would you think that

Answer 7

it's the right answer actually..i just want to know if you know why

Answer 8

it's commutative

Answer 9

you need to use the commutative property to collect like terms on the left side.

Answer 10

because you're changing the order

Answer 11

you can think of commutative property as switching the order of two terms (one pair at a time)

Answer 12

a - 2b + 2a becomes a + 2a - 2b...different order right?

Answer 13

lg, what do you do after you get
3a -2b = 3a - 2b ?

Answer 14

btw it's LGBASALLOTE

Answer 15

im not sure what this question is asking, to simplify further ... go on

Answer 16

i think it's just asking how the LHS can look lie RHS

Answer 17

like*

Answer 18

ok, then it's an identity