Question

4x−5y=k,2x−3y=12 rs aggarwal class 10 CBSE board exam ​

Answer 1

Given: 4x – 5y = k – eq 1

2x – 3y = 12 – eq 2

a1 = 4, b1 = - 5, c1 = - k

a2 = 2, b2 = - 3, c2 = - 12

Given systems of equations has a unique solution

Here, the system of equations have unique solutions, irrespective of the value of k.

That is solution of the given system of equations is independent of the value of k.

∴ k is any real number