Question 1144095
{{{system(2x+y=13,-x+y=5)}}}


{{{system(2x+y=13,x-y=-5)}}}


{{{E1+E2}}}
{{{3x+0=8}}}
{{{highlight_green(x=8/3)}}}


{{{from}}}{{{original}}}{{{system}}}
{{{system(2x+y=13,-2x+2y=10)}}}

{{{E1+E2}}}
{{{3y=23}}}
{{{highlight_green(y=23/3)}}}