The joint equation of the straight lines `x+y=1` and `x-y=4`, is

The joint equation of the straight lines x-y=1 and 2x+y=6 is

The joint equation of the straight lines x-y=1 and 2x+y=6 is

The joint equation of the lines x+2y-1=0 and 2x-3y+2=0 is

The joints equation of the lines 3x-2y+5=0 and 5x-3y=0 is

The joint equation of the lines 3x+2y-1=0 and x+3y-2=0 is

The joint equation of the line x-y=0 and x+y=0 is

The joint equation of the line 2x+y=0 and 3x-5y=0 is

What is the equation of the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10 ?