Question

2. Which of the following
system of equations has unique
solution *
O
2x + 4y =6 , x + 2y = 3
O x - y = 7 , x - y = 4
O 2x - y = 3, x - 2y = 1
O None of These​

Answer 1

Answer:

2x-y=7,x-y=4 is the right answer

Answer 2

Answer:

Step-by-step explanation:

2x - y = 3, x - 2y = 1 will have unique solution

2x + 4y =6 and x + 2y = 3 are same. So unique solution not possible.

x - y = 7 , x - y = 4 . Co-efficient of x and y are same . So unique solution not possible.