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a fost răspuns

Afla numarul necunoscut:
9000-(2714-b)=4832
(c-1798)+3859=10000
(d+2785)-3097=1780

Răspuns :

9000-(2714-b)=4832
(2714-b)=9000-4832
(2714-b)=4168
b=4168-2714
b=1454

(c-1798)+3859=10000
(c-1798)=10000-3859
(c-1798)=6141
c=6141+1798
c=7939

(d+2785)-3097=1780
(d+2785)=1780+3097
(d+2785)=4877
d=4877-2785
d=2092


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