SOLUTION: Solve using Matrices
-y-z=0
4x-y-2z=18
z=-y
Algebra.Com
Question 1051764: Solve using Matrices
-y-z=0
4x-y-2z=18
z=-y
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Eq. 1 and eq. 3 are dependent (multiply eq. 1 by -1 to get eq. 3).
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