Question

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

Answer 1

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.