+\left \{ {{3x-5y=11} \atop {8x+5y=11}} \right. \\
3x+8x-5y+5y=11+11 \\ 11x=22 \\ x=2 \\ 3*2-5y=11 \\ 5y=6-11 \\ 5y=-5 \\ \\ (2;-1)" alt=" \left \{ {{-3x+5y=-11|*(-1)} \atop {8x+5y=11}} \right. => +\left \{ {{3x-5y=11} \atop {8x+5y=11}} \right. \\
3x+8x-5y+5y=11+11 \\ 11x=22 \\ x=2 \\ 3*2-5y=11 \\ 5y=6-11 \\ 5y=-5 \\ \\ (2;-1)" align="absmiddle" class="latex-formula">
