Answer:
All real numbers
Step-by-step explanation:
You have to distribute the 6 into 2x + 4, which equals 12x + 24. You have to distribute on the other side as well, to get 12x + 24. Then, subtract 12x from both sides. However, when you do so, the variable disappears, and you're left with 24=24. Because it is a true statement, the answer is "all real numbers." Hope this helped!