In Problems 3974, solve each system of equations using matrices (row operations). If the system has no
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In Problems 39–74, solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
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7 3x - y = 9х 9x - Зу = 21
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3x y 7 9x3y21 Write the augmented matrix 1 ...View the full answer
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