Algebra help needed please!!
posted by Kris .
I have a few questions I need help with!
1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter.
3x+yz=4
6x2y+2z=8
12x+4y4z=16
2. Solve the system by triangularizing the augmented matrix and using back substitution.
6x=y4
3y=137x
3. What row operation would produce zero beneath the first entry in the diagonal?
1 2  1
8 2  2
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