Question

. How many solutions are there for a pair of linear equation in two variable are x + 2y + 5

=0 and -3x -6y + 1 = 0

​

Answer 1

Answer:

For the given pair of equations 5x+2y=8 and 2x−5y−3=0;

a

2

a

1

=

2

5

c

2

b

1

=

5

2

c

2

c

1

=

−3

−8

=

3

8

As the given pair of linear equation satisfies -

a

2

a

1



=

b

2

b

1

The graph will be a pair of lines intersecting at a unique point, which is the solution of the pair of equations.