Multiple Choice

In a corporate resource planning model, a team uses a system of linear equations to represent three different production constraints:

{x−y+z=22x−y−z=−62x+2y+z=−3\begin{cases} x - y + z = 2 {}2x - y - z = -6 {}2x + 2y + z = -3 \end{cases}

A consultant suggests a resource profile represented by the ordered triple (-4, -3, 4). To verify this profile, you recall the definition of a solution to a system of equations. Which of the following statements correctly evaluates the consultant's proposal?

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Updated 2026-09-19

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