Answer
Fill the blanks with
(a) ...2...1...3
(b) ...2-t ... 1-t ... t
(c) ... none ... none ... none
Work Step by Step
a. Unique solution,
x=2, y=1, z=3
b. The system is dependent, we take z=t
x=2-t, y=1-t, w=t
c. The third row represents an impossible equation (0=3),
so the system has no solution.
x=none, y=none, z=none.
Fill the blanks with
(a) ...2...1...3
(b) ...2-t ... 1-t ... t
(c) ... none ... none ... none
