The sum of two numbers is 22, and their difference is 12. What are the numbers?

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

How to do this , and can some one explain

Can someone check if i did this correct. it’s number 4 if you’re wondering.