Question: In Problems 3974, solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. z =

In Problems 39–74, solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. z = -3 2x - 4y + z = -7 -2x +

z = -3 2x - 4y + z = -7 -2x + 2y3z = 4 x + 2y

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