Question

the pair of linear equations 2x-ky=11 and -5x+7y= -5 has no solution when:

a)k=13÷5 b)k=14÷5 c)k= -13÷5 d)k= -16÷5

Answer 1

here a1=2 b1=-k c1=-11
a2=-5 b2=7 c2=5
For no Solution a1/a2 = b1/b2 is not equal to c1/c2
2/-5 = -k/7 is not equal to -11/5
Therefore :-
b)14/5