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
Sper că te-am ajutat!
