
In my opinion, that is the simplest form. However, your teacher may want you to remove powers and factors of 5. In that case, the result is ...
One can take the price of the item before the discount is applied and subtract that from the percentage off and get the cost of the item.
I find this is the most effective way.
another method could be if one turned the percentage into a decimal it could be subtracted from the cost of the item.
Answer:
y=x-2
Step-by-step explanation:
if x: 5, x-2=3
y=x-2
therefore:
y=3
x=5