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Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.
x + y + z = -5 x - y + 3z = -1 4x + y + z = -2 Can someone show me how to solve this? step by step please
Ok. I'm going to assume this is for Linear Algebra and you're familiar with the notation for the operations, correct? So I am not going to draw it out because it will take me too long.
This is pre-cal. & Im not sure?