Question

find k for unique solution it x+y=2, 3x-2y =k

Answer 1

x+y-2=0. 3x-2y-k
If the given pair of equation have unique solution then- a1/a2≠b1/b2
Now, 1/3=1/-2
=>-2=3
b1/b2=c1/c2
=>1/-2=2/k
=>k-4

Answer 2

Answer: hope &pray it will help...

Step-by-step explanation:Here, we have two eq as follows- x+y-2=0 ...(1)

On compairing it; a1=1,b1=1,c1=-2 & 3x-2y-k=0 ...(2) a2=3, b2=-2,c2=-k it has an unique sol. Hence; a1/a2is not equal to b1/b2 taking, b1/b2=c1/c2 => 1/-2=-2/-k =>1/-2=2/k =>k=-4 Ans.