Question: What constant should replace the question mark in this system so that the solution set is {(1, 1, 1)}? 2x - 3y + -5x +

What constant should replace the question mark in this system so that the solution set is {(1, 1, 1)}?


2x - 3y + -5x + 2y z = 0 - 2

2x - 3y + -5x + 2y z = 0 - 2 = x + y + 2z = ? 4 -4

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