Question 486305
{{{system(x=-4y-2,3x-y=20)}}}
substitute {{{x=-4y-2}}} into the second equation
{{{3(-4y-2)-y=20}}}
{{{-12y-6-y=20}}}
{{{-13y=20+6}}}
{{{-13y=26}}}
{{{y=26/(-13)}}}
{{{y=-2}}}
Substitute {{{y=-2}}} into the first equation {{{x=-4*(-2)-2=6}}}
Answer (6,-2)