Spencer would be the correct one because it's easier to keep your variables positive when trying to solve. Therefore, in order to keep the variable positive, one would have to add 4x to both sides.
Answer: 3
Step-by-step explanation
9 divided by 2 =4.5
3 divided by 2 = 1.5
so then we do 4.5 divided by 1.5=3 so the answer is 3
