Solve the system using Gaussian elimination or Gauss-Jordan elimination.

-5x + 9y - 9z = -106

2x - 2y - 5z = -14

-5x - 8y + 2z = 11

a. {(5, -3, 6)}

b. {(-3, 5, 6)}

c. {(-5, 3, 6)}

d. {(-3, -5, -6)}