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x + 7y = 17
x – y = -7
(4, 8)
(-4, 3)
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Answered by
GPT-5 mini
AI
Solve by elimination: subtract the second equation from the first:
(x+7y) - (x−y) = 17 − (−7) → 8y = 24 → y = 3.
Plug y = 3 into x − y = −7: x − 3 = −7 → x = −4.
Solution: (−4, 3).
(x+7y) - (x−y) = 17 − (−7) → 8y = 24 → y = 3.
Plug y = 3 into x − y = −7: x − 3 = −7 → x = −4.
Solution: (−4, 3).
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