х−39+48х-39+48х−39+48-31−431-431−4-11−4+3111-4+3111−4+31=48
х-39+48-31+4-11+4-31=48
х+9-31+4-11+4-31=48
х-2-31+4+4-31=48
х-2-62+8=48
х-56=48
х=48+56
х=104
х−39+48х-39+48х−39+48-31−431-431−4-11−4+3111-4+3111−4+31=48
х-39+48-31+4-11+4-31=48
х+9-31+4-11+4-31=48
х-2-31+4+4-31=48
х-2-62+8=48
х-56=48
х=48+56
х=104