ICSE - Mathematics Class 9 | Ex 6C | Simultaneous (Linear) Equations [Including Problems]

ICSE
Selina
Concise Mathematics Class 9
Chapter 6. Simultaneous (Linear) Equations [Including Problems]
Exercise 6 (C) Solve using cross-multiplication method
Q4) 5x + 4y + 14 = 0 & 3x = - 10 – 4y


Q6) 4x - y = 5 & 5y - 4x = 7

Q11) 0.4x – 1.5y = 6.5 & 0.3x + 0.2y = 0.9

Q12) √2x – √3y = 0 & √5x + √2y = 0

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