Equations of the given lines are x+2y+1=0 x+2y−1=0 Therefore, the distance between the parallel line is =‌
1+1
√1+4
=‌
2
√5
The required equation of the line is given by 2x−y+λ=0 since line passes through (-5,4) λ=14 Therefore, the required equation of the line is 2x−y+14=0