найдите корни уравнений: 2) 8x+11 2/11=15; 4) 4х-19 3/5=23; 6) (8 7/12-х):20=7/40; 8) 44:(х-9 3/4)=1 9/13

2) 8x+11 2/11=15;8x = 15 - 11 2/11 (=3 9/11= 42/11)x = 21/444) 4х-19 3/5=23;4*х = 23 +19 3/5;4*х = 42 3/5; (= 213/5 )х = 213/20 = 10 13/20;6) (8 7/12-х):20=7/40;8 7/12 - х = (7/40) * 20 ; (= 7/2 = 3 1/2)x = 8 7/12 - 3 6/12x = 5 1/128) 44:(х-9 3/4)=1 9/13х-9 3/4 = 44 : (22/13);  (=26)x = 26 + 9 3/4 = 35 3/4