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a+224-199=94aflal pe a

Răspuns :

a+224-199=94
a+224=94+199
a+224=293
a=293-224
a=69
verificare
69+224-199=94
293-199=94
94=94
A+224-199=94
=A+224=B
=B-199
B=199-94
B=105
A+224=105
A=224-105
A=129