### How do you solve linear equations?

1. What is a system of equations? 2. Solve for X and Y in the following problems. Show all your work. a. X + Y= 10 , 3X + Y = 12 b. 2X + 5Y = 19 , 3X + 3Y = 15 c. 4X + Y = 22 , 2X + 3Y = 16 d. 12X + Y = 174 , 8X - 2Y = 36 3. Suppose Bob owns 2,000 shares of Company X and 10,000 shares of Company Y