11×{138×20:5+[11707:(727:144+21×x)-14]-130}=5297-996
11×{138×20:5+[11707:(727:144+21×x)-14]-130}=4301
138×20:5+[11707:(727:144+21×x)-14]-130=4301:11
138×20:5+[11707:(727:144+21×x)-14]-130=391
2760:5+[11707:(727:144+21×x)-14]-130=391
552+[11707:(727:144+21×x)-14]-130=391
552+[11707:(727:144+21×x)-14]=391+130=521
11707:(727:144+21×x)-14=521-552= - 31
(727:144+21×x)-14= - 31x11707= - 362917
727:144+21×x= - 362917+14=- 362903
144+21×x=727 :- 362903
cred ca s-a strecurat o greseala in datele problemei, un semn schimbat