Lectures - 5.3 Formulation and Solution in Three or More Variables

Quiz 5.3 #1 - Solving a system of three equations

Solve the following system of equations:
x – y + z = 3
2x – 2y + z = 7
x – 2y + 3z = 3

Quiz 5.3 #2 - Determining solutions of a system of equations

Which of the following solution best describe the following system of equations?
x – 2y = 3
x + 2y + 2z = 3
x + 6y + 4z = 3

  • A. No solution
  • B. One solution
  • C. Infinite solutions with one arbitrary variable
  • D. Infinite solutions with two arbitrary variable