Respuesta :
Answer:
Every number is correct
Step-by-step explanation:
Simplify the equation:
7(2x+3)=21+14x
14x+21=21+14x
You see here that they are equal. No matter what x you put in they will always be equal. The answer is all numbers
They are both equal. You can just leave it at 14x+21 =21+14x, but if you are not satisfied with it (and don’t want to leave it as 0=0), since it’s addition, you can change the order because it will be the same. In other words, leave it as 14x + 21 = 14x + 21
