Question

Find K for which the given equation has unique solution 4x - 5y - k = 0 ; 2x - 3y -12 =0

Answer 1

Step-by-step explanation:

4x-5y-k = 0

2x-3y-12 = 0

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

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

a1/a2 ≠ b1/b2 ≠ c1/c2

4/2 ≠ -5/-3 ≠ -k/-12

2 ≠ 5/3 ≠ k/12

K ≠ 24 & K ≠ 20