10x+7}} \right.\\\\\left \{ {{7x-6x<-5-10} \atop {9x-10x>7-2}} \right.\\\\\left \{ {{x<-15} \atop {-x>5}} \right.\\\\\left \{ {{x<-15} \atop {x<-5}} \right.\\\\x\in(-\infty;-15)" alt="\left \{ {{7x+10<6x-5} \atop {9x+2>10x+7}} \right.\\\\\left \{ {{7x-6x<-5-10} \atop {9x-10x>7-2}} \right.\\\\\left \{ {{x<-15} \atop {-x>5}} \right.\\\\\left \{ {{x<-15} \atop {x<-5}} \right.\\\\x\in(-\infty;-15)" align="absmiddle" class="latex-formula">