Question

write a pair of linear equations which has the unique solution x= -1, y=3.how many such pairs can u write?

Answer 1

Hi the following can be a pair
x+y = 2 &
x-y = -4
You can write many such pairs provided all of them would be satisfied by given point (-1,3).
Hope this helps.

Answer 2

Answer:

The required equations are $2x+3y= 7$ and  $5x+2y= 1$          

Step-by-step explanation:

Given : A pair of linear equations which has the unique solution x= -1, y=3.

To find : How many such pairs can u write?

Solution :

Now, We have to make up a pair of linear equations with solution: x=-1 and y =3.  

Let, $2x = -2$ and $3y = 9$

1st Equation form is $2x+3y= 7$

Let, $5x = -5$ and $2y = 6$

2nd Equation form is $5x+2y= 1$

Therefore, The required equations are $2x+3y= 7$ and  $5x+2y= 1$