Find the equations of straight lines which are perpendicular to the line 3x+4y-6=0 and are at a distance of 4 units from (2,1).

Find the equations of straight lines which are perpendicular to the straight line 4x-3y+7=0 and at a distance of 3 unit from the origin.

Find the equations of straight line which are perpendicular to the straight line 4x-3y+7=0 and at a distance 3 unit from the origin.

Find the equation of the line which is parallel to the line 3x + 4y + 7 = 0 and is at a distance 2 from it.

Find the equations of two straight lines which are parallel to the line 12x+5y+2=0 and at a unit distance from the point (1, -1).

Find the equations of the two straight line parallel to the line 3x+4y=15 and at a distance of 7.5 unit from the point (1,-2).

Find the equation of a line perpendicular to the line 3x+y+5=0 and at a distance of 3 units from the origin.

Find the equation of a line perpendicular to the line 3x+y+5=0 and at a distance of 3 units from the origin.

Find the equation of the line perpendicular to the line 3x+4y+6=0 and making intercept -4 on X-axis.