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2014-04-27T01:17:11+03:00
A+b=a-b+138
a+b=4x(a-b)
a+b-a+b=138
2b=138
b=138/2
b=69 al doilea nr
4a-4b=a+b
4a-4x69=a+69
4a-276=a+69
4a-a=276+69
3a=345
a=345/3
a=115
primul nr
verificare

115+69=184 suma nr
115--69=46  diferenta nr
184-46=138
184/46=4