Posted by gabs on Tuesday, June 7, 2011 at 10:54pm.
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!

PRE CALC  Reiny, Tuesday, June 7, 2011 at 11:23pm
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.

PRE CALC  gabs, Tuesday, June 7, 2011 at 11:58pm
yes but i still don't get the answer!!!

PRE CALC  Mgraph, Wednesday, June 8, 2011 at 12:10am
x=1, y=4, z=5
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