Question 301617
1.{{{5x + 3y= -1}}}
2.{{{x + y = 1}}}
From eq. 2,
{{{x=1-y}}}
Substitute into eq. 1,
{{{5(1-y)+3y=-1}}}
{{{5-5y+3y=-1}}}
{{{-2y=-6}}}
{{{highlight_green( y=3)}}}
Now use either equation to solve for x.
{{{x=1-y}}}
{{{x=1-3}}}
{{{highlight_green( x=-2)}}}