Решите пожаааалууууууууууйстаааа

1) $\left \{ {{x-3y=5} \atop {5x+11y=-1}} \right. \left \{ {{x=5+3y} \atop {5(5+3y)+11y=-1}} \right. \left \{ {{x=5+3y} \atop {25+26y=-1}} \right. \left \{ {{x=5+3y} \atop {26y=-26}} \right. \left \{ {{x=5+3y} \atop {y=-1}} \right.$

$\left \{ {{x=5+3*(-1)} \atop {y=-1}} \right. \left \{ {{x=2} \atop {y=-1}} \right.$ 2) $\left \{ {{12-7x \leq 5+3x} \atop {15-6x\ \textgreater \ 11-2x}} \right. \left \{ {{-7x-3x\leq5-12} \atop {2x-6x\ \textgreater \ 11-15}} \right. \left \{ {{-10x \leq-7} \atop {-4x\ \textgreater \ -4}} \right. \left \{ {{x\leq0,7} \atop {x\ \textgreater \ 1}} \right. 0,7\geq x \ \textgreater \ 1$ $\left \{ {{x=5+3*(-1)} \atop {y=-1}} \right. \left \{ {{x=2} \atop {y=-1}} \right.$