For what value of k the following system of equations kx + 2y = 3 3x + 6y = 10 has a unique solution

Open in App

Here a1=k,b1=2,a2=3,b2=1.

k321

k6

(d) k6

(d) all real values except -6


Suggest Corrections

8

The given equations are
kx + 2y = 3
3x + 6y = 10
For a unique solution,`a_1/a_2 ≠ b_1/b_2`

Where a1= k, a2 = 3, b1 = 2, b2 = 6.

`k/3 ≠ 2/6`⇒ k ≠ 1

For all values of k except 1, the given linear equations will have a unique solution.