7. Systems of Equations & Matrices
Introduction to Matrices
7:51 minutesProblem 109
Textbook Question
Textbook QuestionSolve each problem. See Examples 5 and 9. Solve the system of equations (4), (5), and (6) from Example 9. 25x + 40y + 20z = 2200 (4) 4x + 2y + 3z = 280 (5) 3x + 2y + z = 180 (6)
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