Question

(10. Except which value of k does the
simultaneous equations 5 - kx = 10y and
x + 15y = -1 have a unique solution?​

Answer 1

Answer:

except -5 the equations have unique solution

Step-by-step explanation:

if the equations have a unique solution then

a1/a2=b1/b2≠c1/c2

-k/1=-10/15≠5/1

-k/1=-10/15. and -k/1≠5/1

-15k=-10. and -k≠5

k=10/15. and. k≠-5

k=0.66. and . k≠-5