'Maximum subscript leaves' diaporamas de présentation

X5 = 5 - 1 X1 + 2 X2 - 1 X3 + 4 X4 X6 = 10 + 0 X1 - 1 X2 + 1 X3 + 0 X4

You only have 5 minutes left to finish your first test. Which variable would you choose to be the entering variable and why to quickly solve this problem?. X5 = 5 - 1 X1 + 2 X2 - 1 X3 + 4 X4 X6 = 10 + 0 X1 - 1 X2 + 1 X3 + 0 X4 X7 = 3 + 1 X1 + 0 X2 + 0 X3 + 5 X4

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