Question

So this set

3 a + 7 + 2 a
&
7 a + 5

Is not equivalent

But how to you tell if one is equivalent or not?

ACTUALLY ANSWER IT AND NOT SAY SOMETHING JUST TO GET POINTS PLEASE xD

Answer 1

16464444565444444444

Answer 2

Well what you would do is add up all the common numbers u add up 7 with 2 and 3a with 2a to get 9 ± 5a

That is a very different number to 7a ± 5

Does this help? comment if not and I will try to re-explain this