Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev

Class 9 Mathematics by VP Classes

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Class 9 : Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev

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:

Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev
Hint: Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev  ...(1)
Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev    ...(2)

Subtracting (1) from (2), Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev = an – bm or Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev
Thus, Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev
Ans.Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev

2. Solve : 141x + 103y = 217;   103x + 141y = 27
Ans. x = 3,  y = –2

3. Solve : 55x + 52y = 217;   52x + 55y = 217
Ans. x = 3,   y = 1

4. Solve :Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev
Ans. x = 4,   y = 3

5. Solve : Hots Questions - Linear Equations in Two Variables Class 9 Notes | EduRev
Ans. x = 2;  y = 1

6. Solve : x + y = 18; y + z = 12;    z + x = 16
Ans. x = 11,  y = 7,  z = 5

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