Q1 of 92 Page 77

Let us solve the following simultaneous linear equations in two variables by applying cross multiplication method.
8x + 5y = 1

3x – 4y = 10

8x + 5y - 1 = 0

3x - 4y - 10 = 0

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

Putting the values, we get:

So, and

and

Let us solve the following simultaneous equations in two variables by the method of substitution.

p(x + y) = q(x – y) = 2pq

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.

5x + 3y = 11

2x – 7y = –12

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.8x + 5y = 13x – 4y = 10