Eliana has a 20% discount coupon for an electronics store. She sees a new laptop that she wants to buy. After the 20% discount was applied, Eliana paid $340 for the laptop.

The easiest way to solve this is by using a proportional equation.

So, 340/x = 80/100

Simplify 80 / 100 to 4/5

Now, cross multiply.

4x = 1700

Divide both sides by 4.

4x/4 = 1700/4

x=425

The original price was $425.