Question

for what value of k, the pair of equation 2x+3y+5=0 and Kx+4y=10 has unique solution?​

Answer 1

Given equations :-

» 2x + 3y + 5 = 0

» kx + 4y = 10

➡ kx + 4y - 10 = 0

we have to find the value of k such that the pair of equations have unique solution.

we know that, when pair of equations have unique solution,

a1/a2 ≠ b1/b2

➡ 2/k ≠ 3/5

just put any value of k so that it doesn't get equal to 3/5.

you can put 1, 2 etc.

for example, k is 2, then a1/a2 = 2/2 = 1

LHS ≠ RHS

Answer 2

here is your answer

hope it helps you