Based on the two different payment plans, the equation which can solve for the number of classes that equates both plans is 50x = 200 + 10x.
Plan A has no yearly fee but charges $50 per class.
Plan B has a $200 yearly fee and charges $10 per class.
Assuming the number of classes was x, the equation of Plan As total cost is:
= 50x
The equation of Plan B is:
= 200 + 10x
The equation to find the number of classes where the plans are equal is:
50x = 200 + 10x
Solving gives 5 classes.
Find out more on equations for equating different plans at https://brainly.com/question/13203314.