Simultaneous (Linear) Equations [Including Problems] | ICSE Mathematics Class 9 | Ex 6B | Part IV
ICSE
Selina
Concise Mathematics Class 9
Chapter 6. Simultaneous (Linear) Equations [Including Problems]
Exercise 6 (B) Method of elimination by equating coefficients
Part 4 - Questions 10, 11 & 12
For solving each pair of equations, in this exercise, use the method of elimination by equating coefficients.
Q10. 41x + 53y = 135
53x + 41y = 147
Q11. If 2x + y = 23 and 4x - y = 19, find the values of x - 3y and 5y -2x.
Q12) If 10y = 7x - 4 and 12x +18y = 1, find the values of 4x + 6y and 8y -x.
Below are the video links for chapters.
Exercise 3 (C) Part I
• Compound Interest (Using Formula) | ICSE M...
Exercise 3 (C) Part II
• Compound Interest (Using Formula) | ICSE M...
Exercise 3 (C) Part III
• Compound Interest (Using Formula) | ICSE M...
Other exercises in this chapter • Compound Interest using Formula | Class 9 ...
For March 2021 examination of class 9
Standard IX Revised syllabus. 2020-21
For March 2021 examination of class IX