Решить систему неравенств а) {2x-18<0 в) {3x-6>3 г) {7-x>0 {5x<1 {1-2x<6 {x+2<3x-16

А) $\left \{ {{2x<18} \atop {5x<1}} \right. \left \{ {{x<9} \atop {x<0,2}} \right. (-\infty} ; 0,2)$
б) 9} \atop {2x>-5}} \right. \left \{ {{x>3} \atop {x>-2,5}} \right. (3;+ \infty)" alt=" \left \{ {{3x>9} \atop {2x>-5}} \right. \left \{ {{x>3} \atop {x>-2,5}} \right. (3;+ \infty)" align="absmiddle" class="latex-formula">
в)9}} \right. (- \infty;7)U(9;+\infty)" alt=" \left \{ {{x<7} \atop {x>9}} \right. (- \infty;7)U(9;+\infty)" align="absmiddle" class="latex-formula">