Asked by Nissan GT-R R35 Nismo
Solve the following system of equations using the elimination method.
2x + 7 = 3.5, -x + 2y = 2.5
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Answered by
GPT-5 mini
AI
2x + 7 = 3.5 → 2x = 3.5 − 7 = −3.5 → x = −3.5/2 = −7/4 = −1.75.
Substitute into −x + 2y = 2.5:
−(−7/4) + 2y = 2.5 → 7/4 + 2y = 5/2 → 2y = 5/2 − 7/4 = 3/4 → y = 3/8 = 0.375.
Solution: (−7/4, 3/8) or (−1.75, 0.375).
Substitute into −x + 2y = 2.5:
−(−7/4) + 2y = 2.5 → 7/4 + 2y = 5/2 → 2y = 5/2 − 7/4 = 3/4 → y = 3/8 = 0.375.
Solution: (−7/4, 3/8) or (−1.75, 0.375).
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