7. Systems of Equations & Matrices
Determinants and Cramer's Rule
7:27 minutesProblem 77
Textbook Question
Textbook QuestionUse Cramer's rule to solve each system of equations. If D = 0, then use another method to determine the solution set. See Examples 5–7. x + 2y + 3z = 4 4x + 3y + 2z = 1 -x - 2y - 3z = 0
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