Consider the following linear system of equations: 5x-(1)/(3)y=9 and -20x-y=4. Which of the following is the augmented matrix formulation for the system?

a. [[5,-(1)/(3)
b. [[5,-(1)/(3)],[9]
c. [[5,-(1)/(3)],[9],[4]
d. [[5,-(1)/(3)],[4]

Time left. Select one.