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Rezolvati in multimea numerelor naturale ecuatia
a)x+23=47
b)31+x=52
c)x+8=5



Răspuns :

X=47-23=24
X=52-31=21
X=5-8=-3

a) x+23=47, x=47-23, x=24
b) 31+x=52, x=52-31, x=21
c) x+8=5, x=5-8, x= -3