Răspuns :
a+b=402
a:b=5r18
a=5b+18
5b+18=b=402
6b+18=402
6b=384
b=384:6
b=64
a+64=402
a=402-64
a=338
a:b=5r18
a=5b+18
5b+18=b=402
6b+18=402
6b=384
b=384:6
b=64
a+64=402
a=402-64
a=338
I = x
II = 5 x + 18
I+ II = 402
x+ 5 x+ 18= 402
6 x +18= 402
6 x=402-18
6x= 384
x =384:6
x=64( I)
64*5+18=320+18= 338 ( II )