Question

The pair of equations x + 2y – 5 = 0 and −3x – 8y + 15 = 0 have: ​

Answer 1

Step-by-step explanation:

The given equations are:

x+2y+5=0

−3x−6y+1=0

From the given equation we have:

a

2

a

1

=

−3

1

b

2

b

1

=

−6

2

=

−3

1

c

2

c

1

=

1

5

⇒

a

2

a

1

=

b

2

b

1



=

c

2

c

1

Hence pair of equations have no solution.

Answer 2

Answer:

Given pair of equation are

Given pair of equation arex + 2y = 5 and 3x + ky + 15 = 0

Given pair of equation arex + 2y = 5 and 3x + ky + 15 = 0For unique solution

Given pair of equation arex + 2y = 5 and 3x + ky + 15 = 0For unique solution

k is not equal to 6