Question

for what value of k does the pair of equation given below has a unique solution 2x+ky=6 , 2x-3y=9​

Answer 1

2x+ky=6______(1)

2x-3y=9_______(2)

a¹=2, b¹=k, c¹=6

a²=2, b¹=-3, c¹=9

unique solution

a¹/a²#b¹/b²

2/2#k/-3

2k#-6

k#-6/2

[k#-3]