Răspuns :
a - b = 60
b = 2a + 13
a ___/
b ___/___/ + 13
60 - 13 = 47
a = 47
b = - 60 + 47
b = - 13
verificare:
47 - (- 13) = 47 + 13 = 60
a - b = 60
b = 2a + 13
a ___/
b ___/___/ + 13
60 - 13 = 47
a = 47
b = - 60 + 47
b = - 13
verificare:
47 - (- 13) = 47 + 13 = 60
a - b = 60
b-a = 60
b = 2a - 13
2a-13-a=60
a=60+13
a = 73
b = 73-70
b =13
60 +13 = 73 primul numar
73-60=13 al doilea numar
b = 2a - 13
2a-13-a=60
a=60+13
a = 73
b = 73-70
b =13
60 +13 = 73 primul numar
73-60=13 al doilea numar