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a+ bx10+ cx100 +dx1000=14538
de aflat a,b,c,d,


Răspuns :

a+ bx10+ cx100 +dx1000=14538
a=8
8+ bx10+ cx100 +dx1000=14538
 bx10+ cx100 +dx1000=14530
b=3
30+ cx100 +dx1000=14530
 cx100 +dx1000=14500
c=5
 500 +dx1000=14500
 dx1000=14000
d=14 
14000=14000