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Simultaneous (Linear) Equations [Including Problems] | ICSE Mathematics Class 9 | Ex 6B | Part - VI
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ICSE
Selina
Concise Mathematics Class 9
Chapter 6. Simultaneous (Linear) Equations [Including Problems]
Exercise 6 (B) Method of elimination by equating coefficients
Part 6 - Questions 17, 18 & 19.
For solving each pair of equations, in this exercise, use the method of elimination by equating coefficients.
Q17. Solve :
11(x – 5) +10(y – 2) + 54 = 0
7(2x – 1) + 9(3y – 1) = 25
18) Solve :
(7 + x) / 5 – (2x – y) / 4 = 3y – 5
(5y - 7) / 2 + (4x – 3) / 6 = 18 – 5x
19) Solve:
4x + (x – y) / 8 = 17
2y + x – (5y + 2) / 3 = 2
Below are the video links for chapters.
Exercise 3 (C) Part I
Exercise 3 (C) Part II
Exercise 3 (C) Part III
For March 2021 examination of class 9
Standard IX Revised syllabus. 2020-21
For March 2021 examination of class IX
Selina
Concise Mathematics Class 9
Chapter 6. Simultaneous (Linear) Equations [Including Problems]
Exercise 6 (B) Method of elimination by equating coefficients
Part 6 - Questions 17, 18 & 19.
For solving each pair of equations, in this exercise, use the method of elimination by equating coefficients.
Q17. Solve :
11(x – 5) +10(y – 2) + 54 = 0
7(2x – 1) + 9(3y – 1) = 25
18) Solve :
(7 + x) / 5 – (2x – y) / 4 = 3y – 5
(5y - 7) / 2 + (4x – 3) / 6 = 18 – 5x
19) Solve:
4x + (x – y) / 8 = 17
2y + x – (5y + 2) / 3 = 2
Below are the video links for chapters.
Exercise 3 (C) Part I
Exercise 3 (C) Part II
Exercise 3 (C) Part III
For March 2021 examination of class 9
Standard IX Revised syllabus. 2020-21
For March 2021 examination of class IX
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