Question

for what value of k the following pair of linear equation has unique solution 7x+8y=k and 9x_4y=12

Answer 1

7/9 ≠ 8/4 (unique solution)

also 8/4≠ k/12

k≠24

so, k=1,2,3,4,5,6,7,8,9..........(except 24)

Answer 2

Answer:

your answer is in the given attachment...