posted by gabs .
Use matrices to solve the system. (If the system has infinitely many solutions, express your answer in terms of c, where x = x(c), y = y(c), and z = c. If the system has no solution, enter NONE for each answer.)
ive done tons of these but this one is giving me a bit of trouble.. please help!
Is your augmented matrix correct ?
5 2 -1 | 2
1 -2 2 | -1
0 3 1 | -17
I don't know which matrix method you are supposed to use.
e.g. Gauss-Jordan ? or .....
hard to line up matrices nicely on this forum.
yes but i still don't get the answer!!!
x=1, y=-4, z=-5