Răspuns: 4 si 9 => cele doua numere
Explicație pas cu pas:
a + b = 13 -> suma
13 : ( a - b ) = 2 rest 3
a - b = ( 13 - 3 ) : 2
a - b = 10 : 2
a - b = 5 -> diferenta => a = b + 5
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a + b = 13
( b + 5 ) + b = 13
2 × b = 13 - 5
2 × b = 8
b = 8 : 2 ⇒ b = 4
a = 4 + 5 ⇒ a = 9
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a + b = 9 + 4 = 13 ( suma )
( 9 + 4 ) : ( 9 - 4 ) = 13 : 5 = 2 rest 3
