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ab2-2ab=549
Raspuns urgent va rog!!!


Răspuns :

ab2-2ab=549
100×a+10×b+2 - 200-10×a-b = 549
90×a+9×b = 549-2+200
9×( 10a+b) = 747
10×a+b = 747:9
10×a+b = 83
a= 8
b = 3
10×8+3 = 83

Verificare:
832 - 283 = 549

a = 8
b = 3