(х-5 3/4)*2+9 7/11=12
(х-5 3/4)*2=12-9 7/11
(х-5 3/4)*2=2 4/11
х-5 3/4=2 4/11:2
х-5 3/4=13/11=1 2/11
х=1 2/11+5 3/4=52/44+253/44
х=305/44=6 41/44
(6 41/44-5 3/4)*2+9 7/11=
6 41/44-5 3/4=6 41/44-5 33/44=1 8/44=1 2/11*2=13/11*2/1=26/11=2 4/11+9 7/11=11 11/11=12