Răspuns :
a -numarul necunoscut
[a+(45×72)-(3×255)]=2495
[a+3240-765]=2495
a+2475=2495
a=2495-2475
a=20
Răspuns:
a+(45×72)=b-(255×3)=2495
a+3240=b-765=2495
a+3240=3260
a=3260-3240
a=20
a -numarul necunoscut
[a+(45×72)-(3×255)]=2495
[a+3240-765]=2495
a+2475=2495
a=2495-2475
a=20
Răspuns:
a+(45×72)=b-(255×3)=2495
a+3240=b-765=2495
a+3240=3260
a=3260-3240
a=20