50* (х:16)=40.150                                              2.700 + у *400=170.700

50*(x:16)=40,150x:16=40,150:50x:16=0,803x=0,803*16x=12,8482,700+y*400=170,700y*400=170,700-2,700y*400=168y=168:400y=0,42