\left \{ {{x=3-2y} \atop {2x+y=1}} \right.
\left \{ {{x=3-2y} \atop {y=5/3}} \right.
\left \{ {{x=-1/3} \atop {y=5/3}} \right." alt="\left \{ {{x+2y=3} \atop {2x+y=1}} \right.
\left \{ {{x=3-2y} \atop {2x+y=1}} \right.
\left \{ {{x=3-2y} \atop {y=5/3}} \right.
\left \{ {{x=-1/3} \atop {y=5/3}} \right." align="absmiddle" class="latex-formula">