Решите уравнение 30*х=810000,355200:z=800,y:400=5793,67085-k:90=59397,700*(83400:m(=420000,(n+10986)*5=589650
30*х=810000 x=810000:30 x=2700 355200:z=800 z=800*355200 z=284160000 y:400=5793 y=5793*400 y=2317200