Question

2x +y=8 ,
x -2y= - 1​

Answer 1

1×(4)−(−8)(−3)

x

=

2×(4)−(−8)×4

−y

=

2×(−3)−1×4

1

⟹

−20

x

=

40

−y

=

−10

1

⟹x=2,y=4.

∴(x,y)=(2,4)

Hence, the answer is x=2,y=4.