Fill in the Blank

An inventory manager is checking if a specific stock adjustment fits the company's resource model defined by the system:

3x+y=0{}3x + y = 0 x+2y=−5x + 2y = -5

To determine if the ordered pair (1,−3)(1, -3) is a solution to this system, the manager must substitute the values into ____ (one/both) equation(s). If the resulting statements for both equations are true, then the ordered pair is a solution.

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Updated 2026-09-19

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