Check my work!

adding additional toppings to a large cheese pizza cost $1.39 per topping. the equation 14.85 + 1.39x = 20 can be used to determine the number of toppings that can be added to a large cheese pizza for a total of $20. jacob solves the equation and says you can get 4 toppings added if you have $20. is this reasonable? justify your response. if the answer is not reasonable, identify the error and then calculate the correct solution.
14.85 + 1.39x = 201.39x = 20 – 14.851.39x = 5.151.39 / 1.39 = 5.15 / 1.39x = 3.70did i answer this correctly, if not can you tell what i did wrong!