Question

19. If the pair of linear equations 9.x-(2k-5)y=17 and 10x+(7k-1)y-3k=0 has no solution, then find the value of k.. 47 (a) 47/73 (b) 53/81 (c)65/77 (d) 59/83 ​

Answer 1

Step-by-step explanation:

9x-(2k-5)y-17=0

10x+(7k-1)y-3k=0

a1 = B1 is not = C1

a2 B2 C2

Solution : 9x-(2k-5)y-17=0

10x+(7k-1)y-3k=0

= 9 = (-2k+5)

10 (7k-1)

=9 (7k-1)=10 (-2k+5) Note:(2k-5) As

=63k-9= -20k+50 changed

=63k+20k=50+9 to (-2k+5)

=83k=59 because

k=59 there is a (-)

83 sign in the

equation

So your Answer is Option D