Question 854448
{{{-2x-4y=1}}}
1.{{{2x+4y=1}}}
{{{12y=-6x-3}}}
{{{6x+12y=-3}}}
2.{{{2x+4y=-3/4}}}
Eqs. 1 and 2 have same left side, different right sides. 
This is an inconsistent system (two parallel lines) and have no solutions.