Question 338919
1.{{{5x+9y=-16}}}
2.{{{6x+y=31}}}
From eq. 2,
{{{y=-6x+31}}}
Substitute into eq. 1,
{{{5x+9(-6x+31)=-16}}}
{{{5x-54x+279=-16}}}
{{{-49x=-295}}}
{{{highlight(x=295/49)}}}
Then from eq. 2,
{{{y=-6(295/49)+31}}}
{{{y=-1770/49+1519/49}}}
{{{highlight(y=-251/49)}}}