Answer:
THIS IS SO EASY
Explanation:
ok ok ok, x=3, because when you are solving for x, you want to separate the 3 right? so you divide 3 by 3x because 3/3 is 1
so
3x
__ = 9
3
cross out 3 from the bottom, and you do that to the other side as well, so
9
x = -------
3
x = 3 since 9/3 is 3 there you go hehe