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)=13839+х=162                              х-459=115х=162-39                               х=459+115х=123                                    х=5743))(600-x)-92=126                2)(x-83)+316=425 600-х=218                             х-83=425-316х=600-218                             х-83=109х=382                                    х=109+83                                              х=1925)502-(217-x)=421               6)871-(x+157)=385217-х=502-421                     х+157=871-385217-х=81                              х+157=486х=217-81                              х=486-157х=136                                   х=329

(39+х)-84=78                           39+х=78+8439+х=162х=162-39х=123___________(39+123)-84=78(600-х)-92=126600-х=126+92600-х=218х=600-218х=382_______(600-382)-92=126253-(х-459)=138х-459=253-138х-459=115х=115+459х=574______253-(574-459)=138 (х-83)+316=425х-83=425-316х-83=109х=109+83х=192__________(192-83)+316=425(600-х)-92=126600-х=126+92600-х=218х=600-218х=382__________(600-382)-92=126871-(х+157)=385х+157=871-385х+157=486х=486-157х=329______871-(329+157)=385