Află numerele necunoscute:
495:a=5
(27×41):b=9
(321-12×12+6(:c=3
d:(726:3)=6
x:8=115rest6
y:(81:9)=155rest4
623:z=5rest 3
962:w=3rest2
pls urgent!dau coroana vreau doua răspunsuri!plss​