Question

1
If the pair of linear equations x-y=1 ,x+ky=5 has a unique solution x=2,y=q, then value of k :
и) - 2
W) 3
©) - 3
d) 4​

Answer 1

Answer:

3

Step-by-step explanation:

x-2. y-q then take q as 1

x-y=1,x+ky=5

2-1=1,2+3*1=5

Answer 2

Answer:

here is ur ans

Step-by-step explanation:

x-y =1

x+ky =5

x=2 y=q k=????

for unique solution

a1/a2 ≠ b1/b2

2/2 ≠ q/ kq

2+ k = 5

k= 3

hope it helped u

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