Răspuns :
a+b=429
a-b=63 => a=b+63
2b+63=429
2b=429-63
2b=366
b=366:2
b=183
a=429-183
a=246
Verificare: 246-183=63
Răspuns:
fie I numar: x
fie II numar:y
x+y=429
x-y=63
x=63+y => y+y+63=429
2y=429-63
2y=366
y=183
x=183+63
x=246
a+b=429
a-b=63 => a=b+63
2b+63=429
2b=429-63
2b=366
b=366:2
b=183
a=429-183
a=246
Verificare: 246-183=63
Răspuns:
fie I numar: x
fie II numar:y
x+y=429
x-y=63
x=63+y => y+y+63=429
2y=429-63
2y=366
y=183
x=183+63
x=246