Q6 of 92 Page 77

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.


⇒ 3x + 5y = 0 (Multiplying both sides by 15)



⇒ 15x - 20y - 9 = 0 (Multiplying both sides by 60)



To solve the equation by cross multiplication method, we use:



Putting the values, we get:




So, and


⇒ x = 1/3 and y = ( - 1/5)


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4

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.

7x – 3y – 31 = 0


9x – 5y – 41 = 0

 5

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.

 7

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.


 8

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.

x + 5y = 36