Question: 4. Use the matrix method to solve the system of equations (or else conclude that a solution does not exist). 2x +y = 7 -x

4. Use the matrix method to solve the system of equations

4. Use the matrix method to solve the system of equations (or else conclude that a solution does not exist). 2x +y = 7 -x + 2y =-1 2x + 5y = -1

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