Solve the system of equations using matrices. Use the Gaussian elimination method with back-substitution.
x+4y=0
x+5y+z=1
2x-y-z=31
The solution set is (___, ____ ,____)
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Solve the system of equations using matrices. Use the Gaussian elimination method with back-substitution. x+4y=0 x+5y+z=1...
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