Ответы и объяснения

2013-04-23T21:51:10+04:00

X-1/3 = (7/18) / (1/6) = (7/18) * (6/1) = (7*6/18) =7/3

X=7/3 +1/3 = (7+1)/3 =8/3 = 2+2/3

2013-04-23T22:12:10+04:00

Х-1/3   = 7/18
   1/6

(х-1/3)*1/6=7/18*1/6

   1/6      1

х-1/3=7/108

х=7/108+1/3

х=43/108