PRE CALC
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.)
5x+2yz=2
x2y+2z= 1
3y+z= 17
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. GaussJordan ? 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