Answer:
Step-by-step explanation:
First, you have to add 3 on both sides, because of reverse operation. The opposite of -3 is +3, so when you add 3 on both sides, the 3 on the left cancels out and the 12 because 12+3, which is 15. Now, the inequality should look like this: 3x > 15. Divide 3 on both sides so that only x remains. 3x/3= x, and 15/3= 5. So, x > 5, and it would be B. Since it just greater than and not greater than or equal to, it would be a open circle. Hope this helped :)
