Question 892924

1.{{{2x + y = 1}}}
2.{{{4x + 2y = -1}}}
From eq. 1,
{{{y=1-2x}}}
Substitute into eq. 2,
{{{4x+2(1-2x)=-1}}}
{{{4x+2-4x=-1}}}
{{{2=-1}}}
False, there is no solution.
These are two parallel lines that never meet so there's no solution.