Question

A TV is on sale for $125 off. The sale price is $875.

Which expression equals the original price in dollars?

Answer 1

The original price is $1,000.

Explanation:

Answer 2

Let's call the original price
`o` and the sale price
`s`. Given the information in the problem, we can say:

`o - s = 125`

(The sale price subtracted from the original price is the sale on the product, which we know is 125.)

We know the value of
`s`, which is 875. If we substitute this into the equation we found, we can find
`o`, as shown below:

`o - s =125`

• Original equation

`o - 875 = 125`

• Substitute in 875 for
  `s`

`o = 1000`

• Add 875 to both sides of the equation

The original price is $1,000.