The document Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev is a part of the Class 9 Course Class 9 Mathematics by VP Classes.

All you need of Class 9 at this link: Class 9

**1. Solve:**

Hint: ...(1)

...(2)

Subtracting (1) from (2), = an â€“ bm or

Thus, **Ans.****2. Solve : 141x + 103y = 217; 103x + 141y = 27****Ans. **x = 3, y = â€“2**3. Solve : 55x + 52y = 217; 52x + 55y = 217****Ans.** x = 3, y = 1**4. Solve :****Ans. **x = 4, y = 3**5. Solve :** **Ans. **x = 2; y = 1**6. Solve : x + y = 18; y + z = 12; z + x = 16****Ans.** x = 11, y = 7, z = 5