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(4 points) For the tableau, P. 0 0 1 X1 5 2 -12 X2 1 1 -5 S1 1 0 0 S2 RHS 0 30 1 47 0 0 perform one pivot operation and enter

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P x2 S1 S2 RHS 0 5 1 1 0 30 R2 0 2 1 0 1 47 R3 1 -12 -5 0 0 0 The boxed element 5 is the pivot element,. So we need to change

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