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Ex 9 va rog dau 5 stele

Ex 9 Va Rog Dau 5 Stele class=

Răspuns :

25.348+a=19.783+25.094
25.348+a=44.877
a=44.877-25.348
a=19.529

Verificare:25.348+19.529=44.877

a+17.826-24.768=7.247
a+6.942=7.247
a=7.247-6.942
a=305

Verificare:305+6.942=7.247


81.236-a=62.121-19.547
81.236-a=42.574
a=81.236-42.574
a=38.662

Verificare:81.236-38.662=42.574


8.923-a+4.852=9.001
a=9.001-4.852
a=4.149

Verificare:8.923-4.149+4.852=9.001


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