Show that the lines 4x+y-9=0, x-2y+3=0, 5x-y-6=0 make equal intercepts on any line of slope 2

The line 2x+3y=5 , 2x+y=k , 2x-y-1=0

Show that the lines are 3x+2y+9=0 and 12x+8y-15=0 are parallel lines.

Show that the lines are 3x+2y+9=0 and 12x+8y-15=0 are parallel lines.

Show that the lines are 3x+2y+9=0 and 12x+8y-15=0 are parallel lines.

A line passes through the point of intersection of the lines 100x + 50y-1=0 and 75x + 25y + 3 = 0 and makes equal intercepts on the axes. Its equation is

Find the equation of a line passing through the point of intersection of the lines 4x+7y-3=0 and 2x-3y+1=0 that has equal intercepts on the axes.

Find the equation of the line passing through the point of intersection of the lines 4x + 7y - 3 = 0 and 2x – 3y + 1 = 0 that has equal intercepts on the axes.

Show that the line x^(2)-4xy+y^(2)=0 and x+y=3 from an equilateral triangle.

Show that the straight line x-2y+3=0 and 6x+3y+8=0 are perpendicular .