Q1 of 186 Page 4

Solve the following pair of linear equation by cross - multiplication method:

8x + 5y = 9


3x + 2y = 4

Given, pair of equations is


8x + 5y – 9 = 0 and 3x + 2y – 4 = 0


By cross - multiplication method, we have





On taking I and III ratio, we get



⇒ x = – 2


On taking II and III ratio, we get



⇒ y = 5


More from this chapter

All 186 →
7

Form the pair of linear equations for the following problems and find their solution by elimination method:

Five years ago, Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as old as Sonu. How old are Nuri and Sonu?

 7

Form the pair of linear equations for the following problems and find their solution by elimination method:

The difference between two numbers is 26 and one number is three times the other. Find them.

 1

Solve the following pair of linear equation by cross - multiplication method:

2x + 3y = 46


3x + 5y = 74

 1

Solve the following pair of linear equation by cross - multiplication method:

x + 4y + 9 = 0


5x – 1 = 3y