Question

if 7x+3y=11 and 3x+7y=-1 then x-y=??

Answer 1

7x+3y=11

3x+7y=-1

- - +
_________

4x-4y=12

4 (x-y)=3

x-y =3

pl......s mark my answer as a brainlist answer

Answer 2

7x + 3y = 11

3x + 7y = - 1

- - +
___________
4x - 4y = 12

4(x - y) = 12

x - y = 12/4

x - y = 3