Question

Check if (-1, 1) is the solution of the equation 2x-y= 3 or not.

Answer 1

(2×-1)-1=3
-2×-1=3
2=3
therefore this is not a solution...
hope it helped

Answer 2

HEYA MATE, HERE IS UR ANSWER

$<b><i>To check the solution ,we need to substitute the values and verify it .$

So ,here lets start with it

Coordinates given=(-1,1)

x=-1

y=1

equation given

2x-y=3

substituting values of x and y

2×-1-1=3

-2-1=3

-3is not =3

So , (-1,1) is not a solution of equation 2x-y=3

$\huge\boxed{\mathbb{BE\:BRAINLY}}$