0} \atop {3x+4>0}} \right.\Rightarrow\left \{ {{5x>8} \atop {3x>-4}} \right.\Rightarrow\left \{ {{x>1,6} \atop {x>- \frac{4}{3} }} \right.\Rightarrow x>1,6" alt=" \left \{ {{5x-8>0} \atop {3x+4>0}} \right.\Rightarrow\left \{ {{5x>8} \atop {3x>-4}} \right.\Rightarrow\left \{ {{x>1,6} \atop {x>- \frac{4}{3} }} \right.\Rightarrow x>1,6" align="absmiddle" class="latex-formula">
2 \frac{1}{3} } \atop {x>-6,1 }} \right.\Rightarrow x>2 \frac{1}{3} " alt="\left \{ {{7-3x<0} \atop {8-x<1,9}} \right.\Rightarrow\left \{ {{-3x<-7} \atop {-x<1,9-8}} \right.\Rightarrow\left \{ {{x>2 \frac{1}{3} } \atop {x>-6,1 }} \right.\Rightarrow x>2 \frac{1}{3} " align="absmiddle" class="latex-formula">