Barney sells fruits and vegetables at an outdoor market stand. He pays $20 in rent per day for the stand, and he pays 8% of the total sales (x) to an employee. Barney and his employee use the following methods to figure out the amount, in dollars, Barney has left after paying for the rent and his employee for one day. Barney takes the total sales after he pays his employee and subtracts 20. The employee takes the total sales, subtracts the amount of pay she will receive, and then subtracts 20. Which equation correctly shows why both their methods produce the same result?