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afla numarul necunoscut a-572=238.
b+309=700
.611-c=384
.1000-d=635.
e-562=379
.f+395=700​


Răspuns :

a-572=238

a=238+572

a=810

b+309=700

b=700-309

b=391

611-c=384

c=611-384

c=227

1000-d=635

d=1000-635

d=365

e-562=379

e=379+562

e=941

f+395=700

f=700-395

f=305

Răspuns:

a-572=238

a=572+238

a=810

b+309=700

b=700-309

b=391

611-c=384

c=611-384

c=227

1000-d=635

d=1000-635

d=365

e-562=379

e=379+562

e=941

f+395=700

f=700-395

f=305