The Bright Star Video Club offers the two membership plans described below.Plan A: $50 yearly membership fee and $2 for each video rental Plan B: $10 yearly membership fee and $4 for each video rental Greg is planning to enroll in one of these plans. For how many video rentals would the total cost of Plan A be equal to the total cost of Plan B? A. 50 B. 20 C. 30 D. 40

To solve this, you need to create two separate equations and set them equal to each other.

Plan A: y = 2x + 50
Plan B: y = 4x + 10

2x + 50 = 4x + 10

Now solve the combined equation.

2x + 50 = 4x + 10
      - 10          - 10 
 2x + 40 = 4x
-2x           -2x
40 = 2x
x = 20