Question

решение системы неравенств
4у<-4
5-у>0

Answer 1

$\left \{ {{4y\ \textless \ -4} \atop {5-y\ \textgreater \ 0}} \right.$
$\left \{ {{y\ \textless \ -1} \atop {-y\ \textgreater \ -5}} \right.$
$\left \{ {{y\ \textless \ -1} \atop {y\ \textless \ 5}} \right.$
y∈(-∞;-1)