Question

Решите систему неравенств:

$<var>\left \{ {{2-6x<14} \atop {5x-21<1}} \right</var>$

Answer 1

$<var>\left \{ {{2-6x<14} \atop {5x-21<1}} \right\\ \left \{ {{6x>-12} \atop {5x<22}} \right\\ \left \{ {{x>-2} \atop {x<22/5}} \right\\ x\in(-2,22/5)</var>$