(ii) 4x + 3y – 4 = 0; 6x = 8 – 5y
Sol. 4x + 3y – 4 = 0
∴ 4x + 3y = 4
6x = 8 – 5y
∴ 6x + 5y = 8
D

=

4

3

=

(4 × 5) – (6 × 3)

=

20 – 18

=

2



6

5







D_{X}

=

4

3

=

(4 × 5) – (8 × 3)

=

20  24

=

 4



8

5







D_{Y}

=

4

4

=

(4 × 8) – (6 × 4)

=

32  24

=

8



6

8







By Cramer's rule,
x

=

D_{x}

=

4

=

2



D


2



y

=

D_{x}

=

8

=

4



D


2



x =  2 and y = 4 is
the solution of given simultaneous equations.