Q3 of 92 Page 77

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.
5x + 3y = 11

2x – 7y = –12

5x + 3y - 11 = 0

2x - 7y + 12 = 0

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

Putting the values, we get:

So, and

⇒ x = 1 and y = 2

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

8x + 5y = 1

3x – 4y = 10

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

3x – 4y = 1

4x = 3y + 6

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

7x – 3y – 31 = 0

9x – 5y – 41 = 0

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

Questions · 92

5. Linear Simultaneous Equations

1 2 3 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 4 4 5 5 5 1 1 2 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 2 3 3 3 3 4 5 5 5 5 5 5 5 5 5 5 5 5 1 2 3 3 4 4 4 4 5 5 5 5 5 5 5 5 1 2 3 4 5 6 7 8 9 10 11 12 13

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.5x + 3y = 112x – 7y = –12