8,2t-4,4t = 38,38 ( 10,49 - s ) /4,02 =0,805
1) 8,2t-4,4t = 38,38 3,8t=38,38 t=10,1 2) (10,49-s)/4,02=0,805 10,49-s=4,02*0,805 10,49-s=3,2361 s=10,49-3,2361
s=7,2539