Question

How do you do this? :| http://gyazo.com/37bbe39b1c59d7f8f2093916079086f1

Answer 1

@NoelGreco or @SqueeSpleen Help?

Answer 2

18a=7(12)
You divide both sides for 12 and you have:
18a/12=7(12)/12=
(18/12)a=7
You divide both sides for a and now you have:
(18/12)a/a=7/a
(18/12)=7/a
You can verify it using the value of a you get from solving this in:
18(a)=7(12), if this equallity is true, then you got the correct answer.

Answer 3

thank you!