Question: thank you!!! Solve the system of equations using matrices. Use the Gaussian elimination method with back-substitution. x + 3y = z + 15 X= -

thank you!!!

Solve the system of equations using matrices. Use the Gaussian elimination method with back-substitution. x + 3y = z + 15 X= - 3+y-Z x+y+7z = 13 The solution set is { ( (Simplify your answers.)

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