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Rezolvati ecuatiile in multimea numerelor naturale:
a) x+104=653
c) x+14=254
e) x+115=743
g) 273+x=1143
f) 351+x=852


Răspuns :

a)x+104=653 x=653-104 x=549 b)x+14=254 x=254-14 x=240 e)x+115=743 x=743-115 x=628 g)273+x=1143 x=1143-273 X=870 f)351+x=852 x=852-351 x=501 SPER CA TE-AM AJUTAT:)))