1) 8*a-6045=1963 2) 1475-x:12=275 3) 92:(3*b+5)=4 4) (240:x+48):26=2              

                                                         92:(3в+5)=4                                                               3в+5=92:4                                                              3в+5=23                                                             3в=23-5  8а-6045=1963                                        3в=18 8a=1963+6045                                       в=18:3 8a=8008                                                в=6                                                                                                    92:(3*6+5)=4                                             a=8008:8 a=1001 8*1001-6045=1963                            (240:х+48):26=2                                                        240:х=2*26 1475-x:12=275                                  240:х=52-48 x:12=1475-275                                 240: х=4 х:12=1200                                        х=240:4 х=1200*12                                        х=60 х=14400                                          (240:60+48):26=2 1475-14400:12=275

1)8а-6045=1963 8а=6045+1963 8а=8008 а=1001 2) 1475-х:12=275 1475-х=12*275 1475-х=3300 х=1475-3300 х=-1825 3) 92:3b+5=44 3b+5=92:44 3b=92:44-5 3b=92:44-220:44 3b=-128:44 3b=-32 b=-32:3 b=минус десять целых две третих.4)   (240:x+48):26=2 240:х+68=52 240:х=-16 х=-240:16 х=-15