Помогите
1/5(7K-1)+K/2<5K+11.3

(7К-1)/5 + К/2 <5К +11.3(14К-2+5К)/10<5К+11.3(19К-2)/10<5К+11.3-31-2К<113-2К<113+31-2К<144-K<72K>-72