0} \atop {3x>9}} \right.\; \; \left \{ {{2x>12} \atop {x>3}} \right. \; \; \left \{ {{x>6} \atop {x>3}} \right. \; \; \Rightarrow \; \; \; x>6" alt="\left \{ {{2x-12>0} \atop {3x>9}} \right.\; \; \left \{ {{2x>12} \atop {x>3}} \right. \; \; \left \{ {{x>6} \atop {x>3}} \right. \; \; \Rightarrow \; \; \; x>6" align="absmiddle" class="latex-formula">