Question

the pair of linear equation kx + 2y= 5 and 3x + y = 1 has unique solution then the value of k ? ​

Answer 1

Answer:

Pair of linear equations :

kx+2y=5 and 3x + y = 1

If the equations have a unique solution then,

a1/a2 ≠ b1/b2 ≠ c1/c2

From above equations,

a1 = k b1 = 2 c1 = 5

a2 = 3 b2 = 1 c2 = 1

k/3 ≠ 2/1

k × 1 ≠ 3 × 2

k ≠ 6

Step-by-step explanation:

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