Multiple Choice

Which substitution correctly checks (−3,2)(-3, 2) in the first equation x+y=−1x + y = -1?

For the system {x+y=−1,;y=x+5}\{x + y = -1,; y = x + 5\}, the proposed solution is (−3,2)(-3, 2).

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Updated 2026-09-20

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