how would you write a real-world problem that models the following equation
-x + 40 = x
A real-world problem that models the equation -x + 40 = x can be written as follows:
An amusement park charges $40 for admission. There is a ride called "Mirror Maze" where the cost of admission is represented by -x. If a person wants to purchase admission to the rest of the park as well as the Mirror Maze, the equation -x + 40 = x represents the total cost of admission.