Question

срочно!помогите,пожалуйста

Answer 1

$\left \{ {{t-1\ \textless \ 2+3t} \atop {5t-7\ \textless \ t+9}} \right. \left \{ {{2t\ \textgreater \ -3} \atop {4t\ \textless \ 16}} \right. \left \{ {{t\ \textgreater \ -3/2} \atop {t\ \textless \ 4}} \right.$
 Ответ(-1.5;4)