\frac{1}{5}} \atop {2x<5}} \right. \; \left \{ {{x>\frac{1}{5}} \atop {x<\frac{5}{2}}} \right. \; \; \to \; \; x\in (\frac{1}{5},\frac{5}{2})\\\\-------(\frac{1}{5})\; ///////\; (\frac{5}{2}=2,5)------" alt=" \left \{ {{-5x<-1} \atop {6x-5<4x}} \right. \; \left \{ {{x>\frac{1}{5}} \atop {2x<5}} \right. \; \left \{ {{x>\frac{1}{5}} \atop {x<\frac{5}{2}}} \right. \; \; \to \; \; x\in (\frac{1}{5},\frac{5}{2})\\\\-------(\frac{1}{5})\; ///////\; (\frac{5}{2}=2,5)------" align="absmiddle" class="latex-formula">