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Giải: hệ phương trình 5x + y = 12, 4x - 5y = -3 — Detailed Solution | AhaStep

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📐 MathLevel 2 — 🟢 Basicsystem_2var👁 20 views⏱ 2 min read

Giải: hệ phương trình 5x + y = 12, 4x - 5y = -3

📝 Problem

hệ phương trình 5x + y = 12, 4x - 5y = -3

✨Detailed Solution

1

1. 🔍 Hệ phương trình — Nhận dạng: Chúng ta có hệ 2 phương trình, 2 ẩn:

2

5x + 1y$ = 12$

3

4x + -5y$ = -3$

4

🤔 Tại sao là hệ? Vì có 2 ẩn (x, y) và 2 PT — cần cả 2 để tìm nghiệm duy nhất.

🔒 15 steps remaining

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