(х+9,18)/9+102,52=250,93 (х-25,92)/7+11,205=306,7
(х+9,18)/9=250,93-102,52 (х-25,92)/7=306,7-11,205
(х+9,18)/9=148,41 (х-25,92)/7=295,495
х+9,18=148,41*9 (х-25,92)=295,495*7
х+9,18=1335,69 х-25,92=2068,465
х=1335,69-9,18 х=2068,465+25,92
х=1326,51 х=2094,385