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2014-03-06T14:00:06+02:00
A+b=26
a-b=10
26-10=16
16;2=8 
8+10=18
a=18
b=8
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2014-03-06T14:25:12+02:00
|___a_____| a              =18
|____|...10..| b              =18-10=8

suma=26

a+(a-10)=26
a+a-10=26
2xa=26+10
2xa=36
a=36:2
a=18
b=18-10
b=8

Verificare
18+8=26 Adevarat
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