The cost of a plane ticket was increased by $15. The new price is $84. What was the price before the increase?
1 Answer
Sep 25, 2016
The price before the increase is $69.
Explanation:
Use the equation: x + 15 = 84
x = the price before the increase
15 = how much the ticket has increased
84 = the resulting price of the increase
Simply subtract 15 from both sides of the equation.
The result is x = 69.
