9-5x} \atop {5-5x<1-4x}} \right. \longrightarrow \left \{ {{x>0} \atop {-x<-4}} \right. \longrightarrow \left \{ {{x>0} \atop {x>4}} \right. \longrightarrow x \in (4;+\infty)}" alt="\mathsf{ \left \{ {{9-4x>9-5x} \atop {5-5x<1-4x}} \right. \longrightarrow \left \{ {{x>0} \atop {-x<-4}} \right. \longrightarrow \left \{ {{x>0} \atop {x>4}} \right. \longrightarrow x \in (4;+\infty)}" align="absmiddle" class="latex-formula">
Ответ: 
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