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a fost răspuns

Efectuati:
0,21:0,7+{22,62*0,9-2,63*[0,9*10-1,7*(7-6,2)]}

Răspuns :

Spidie
0,21:0,7+{22,62*0,9-2,63*[0,9*10-1,7*(7-6,2)]} =0,3+(20,358- (9-1,36) )=
=0,3+(20,358-7,64)=0,3+12,718=13,018