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a fost răspuns

Reconstituie operatiile:
MMMM+NNNN+OOOO=MNNNO
RRRR+RRR=OOOO

Răspuns :

M M M M
N N N N+
O O O O
=M N N N O
M+N+O=10+O
M+N=10
M+N+O+1=10+N
M+O+1=10
M+O=9
M+N+O+1=MN
M=1
N=9
O=8
1111+9999+8888=19998

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