1)(39+x)-84=78 3)(600-x)-92=126 4)253-(x-459)=138 2)(x-83)+316=425 5)502-(217-x)421 3)(600-x)-92=126 6)871-(x+157)=385 Решите уравнение ( если можете с действиями

1) (39+х)-84=78                   4)253-(x-459)=138 39+х=162                              х-459=115 х=162-39                               х=459+115 х=123                                    х=574 3))(600-x)-92=126                2)(x-83)+316=425 600-х=218                             х-83=425-316 х=600-218                             х-83=109 х=382                                    х=109+83                                               х=192 5)502-(217-x)=421               6)871-(x+157)=385 217-х=502-421                     х+157=871-385 217-х=81                              х+157=486 х=217-81                              х=486-157 х=136                                   х=329

(39+х)-84=78                            39+х=78+84 39+х=162 х=162-39 х=123___________ (39+123)-84=78 (600-х)-92=126 600-х=126+92 600-х=218 х=600-218 х=382_______ (600-382)-92=126 253-(х-459)=138 х-459=253-138 х-459=115 х=115+459 х=574______ 253-(574-459)=138   (х-83)+316=425 х-83=425-316 х-83=109 х=109+83 х=192__________ (192-83)+316=425 (600-х)-92=126 600-х=126+92 600-х=218 х=600-218 х=382__________ (600-382)-92=126 871-(х+157)=385 х+157=871-385 х+157=486 х=486-157 х=329______ 871-(329+157)=385